关于java:从零开始搭建SpringBoot项目

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一、新建 springboot 我的项目

1、

new–>Project–>Spring Initralizr
Group:com.zb
Artifact:zbook
springboot version:2.0.4

2、

将

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter</artifactId>
</dependency>

改成

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
</dependency>

3、此时我的项目构造

maven clean 一下，右键 ZbookApplication 运行，我的项目就跑起来了，就是这么简略，真正做到了开箱即用。

二、RestFul Api 接口

1、在 controller 包下新建 HomeController

package com.zb.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class HomeController {@RequestMapping("/")
    public String home(){return "Hello, Zbook!";}
}

注：RestController 和 Controller 注解的区别是：RestController 是返回的内容就是返回的内容，相当于加个 @ResponseBody, 而 controller 个别是返回的页面

此时关上网页，输出 http://localhost:8080/
就会看到 Hello,Zbook!

三、集成 Thymleaf

1、

下面的能够当作是提供服务的接口，假如咱们要开发一个 web 利用，springboot 默认是集成的 thymleaf。
springboot 是约定大于配置的，咱们来看看对于 thymleaf 的约定
（1）默认动态文件（js，css，jpg 等）放在 resources 上面的 static 文件夹上面
（2）页面文件放在 templates 文件夹上面
咱们采纳 bootstrap 来渲染页面，如下图

login.html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8" />
    <title> 登录 </title>
    <link href="/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
    <div class="container">
            <form action="login_in" method="post" class="form-horizontal" role="form" >
                <div class="form-group">
                    <h2 class="col-sm-offset-5 col-sm-4"> 用户登录 </h2>
                </div>
                <div class="form-group">
                    <label for="username" class="col-sm-offset-3 col-sm-2 control-label"> 用户名：</label>
                    <div class="col-sm-3">
                        <input type="text" class="form-control" id="username" name="username" placeholder="请输出用户名" />
                    </div>
                </div>
                <div class="form-group">
                    <label for="password" class="col-sm-offset-3 col-sm-2 control-label"> 明码：</label>
                    <div class="col-sm-3">
                        <input type="text" class="form-control" id="password" name="password" placeholder="请输出明码" />
                    </div>
                </div>
                <div class="form-group">
                    <div class="col-sm-offset-5 col-sm-4">
                        <button type="submit" class="btn btn-default"> 登录 </button>
                    </div>
                </div>
            </form>
    </div>
    <script src="/js/jquery-2.2.1.min.js"></script>
    <script src="/js/bootstrap.min.js"></script>
</body>
</html>

2、写一个 LoginController

package com.zb.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class LoginController {@RequestMapping("/login")
    public String login(){return "login";}
}

3、加依赖

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

4、

重启，http://localhost:8080/login
则会看到登录页面

四、集成 mybatis

1、

springboot 的配置文件分为两种：application.properties 和 application.yml
咱们把它改成 application.yml 这种更直观

spring:
  application:
    name: myspringboot
  output:
    ansi:
      enabled: always
  profiles:
    active: dev
  thymeleaf:
    encoding: UTF-8
    prefix: classpath:/templates/

server:
  tomcat:
    uri-encoding: UTF-8
    max-connections: 500
    min-spare-threads: 25
    max-threads: 300
    accept-count: 200
  port: 8080
mybatis:
  type-aliases-package: com.zb.mapper
  mapper-locations: classpath:mapping/*.xml

pagehelper:
  helper-dialect: mysql
  reasonable: true
  support-methods-arguments: true
  params: count=countSql
logging:
  level:
    com.zb.mapper: debug

---

#开发配置
spring:
  profiles: dev
  datasource:
    url: jdbc:mysql://localhost:3306/zb_db?useUnicode=true&characterEncoding=utf8&autoReconnect=true&failOverReadOnly=false&useSSL=false
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource
    filters: stat
    maxActive: 20
    initialSize: 1
    maxWait: 60000
    minIdle: 1
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: select 'x'
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true
    maxOpenPreparedStatements: 20

2、增加依赖

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>RELEASE</version>
        </dependency>

<!-- 分页插件 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.3</version>
        </dependency>

3、建表

CREATE datebase zb_db;
CREATE TABLE `user` (`id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(255) DEFAULT NULL,
  `password` varchar(255) DEFAULT NULL,
  `mobile` varchar(255) DEFAULT NULL,
  `email` varchar(255) DEFAULT NULL,
  `sex` varchar(255) DEFAULT NULL,
  `nickname` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(1, 'admin', '123456', '13918891675','mmc@163.com', '男', '管理员');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(2, 'lisi2', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(3, 'lisi3', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(4, 'lisi4', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(5, 'lisi5', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(6, 'lisi6', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(7, 'lisi7', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(8, 'lisi8', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(9, 'lisi9', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(10, 'lisi10', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(11, 'lisi11', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(12, 'lisi12', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(13, 'lisi13', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');
insert into `user`(id, username, password, mobile, email,sex, nickname) VALUES(14, 'lisi14', '123456', '13918891675','mmc@163.com', 'm', 'lisi1');

4、用 mybatisgenerator 主动生成文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
    <!-- 数据库驱动: 抉择你的本地硬盘下面的数据库驱动包 -->
    <classPathEntry  location="C:\Users\DELL\Downloads\mysql-connector-java-5.1.22-bin.jar"/>
    <context id="DB2Tables"  targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <!-- 是否去除主动生成的正文 true：是：false: 否 -->
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <!-- 数据库链接 URL，用户名、明码 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://127.0.0.1/zb_db" userId="root" password="123456">
        </jdbcConnection>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
        <!-- 生成模型的包名和地位 -->
        <javaModelGenerator targetPackage="com.zb.model" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!-- 生成映射文件的包名和地位 -->
        <sqlMapGenerator targetPackage="mapping" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
        <!-- 生成 DAO 的包名和地位 -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.zb.mapper" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>

        <!-- 要生成的表 tableName 是数据库中的表名或视图名 domainObjectName 是实体类名 -->
        <table tableName="role_permission" domainObjectName="RolePermission" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
    </context>
</generatorConfiguration>

5、在 pom 外面增加 plugin

<!-- mybatis generator 主动生成代码插件 -->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.2</version>
                <configuration>
                    <configurationFile>${basedir}/src/main/resources/generator/generatorConfig.xml</configurationFile>
                    <overwrite>true</overwrite>
                    <verbose>true</verbose>
                </configuration>
            </plugin>

6、用 mvn mybatis-generator:generate - e 命令生成文件

此时目录构造

7、写 dao 和 service,controller,mapper

mapper 减少了几个办法

@Select("Select * from user")
List<User> selectAll();

@Select("Select * from user where username = #{username} and password = #{password}")
User selectByUsernamePass(@Param("username") String username, @Param("password") String password);

@Select("Select * from user where username = #{username}")
User selectByUsername(@Param("username") String username);

dao 和 service 都是失常调用，上面是 controller

package com.zb.controller;
import com.github.pagehelper.PageInfo;
import com.zb.model.User;
import com.zb.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class UserController {
    @Autowired
    private UserService userService;

    @RequestMapping("/user")
    @ResponseBody
    public User getUserById(int id){User user = userService.selectByPrimaryKey(id);
        return user;
    }

    @RequestMapping("/userlist")
    public String getUserList(Model model, PageInfo pageInfo){int pageNum  = (pageInfo.getPageNum() == 0)? 1 : pageInfo.getPageNum();
        int pageSize  = (pageInfo.getPageSize() == 0)? 10 : pageInfo.getPageSize();
        PageInfo<User> result = userService.selectAll(pageNum, pageSize);
        model.addAttribute("users", result.getList());
        model.addAttribute("pageInfo", result);
        return "userlist";
    }

    @RequestMapping("/userdelete")
    public String userdelete(int id){userService.deleteByPrimaryKey(id);
        return "redirect:/userlist";
    }

    @RequestMapping("/useredit")
    public String useredit(int id, Model model){User user = userService.selectByPrimaryKey(id);
        model.addAttribute("user", user);
        return "useredit";
    }

    @RequestMapping(value = "/userupdateoradd", method = RequestMethod.POST)
    public String userUpdateOrAdd(User user){if(user.getId() == 0){userService.insertSelective(user);
        } else {userService.updateByPrimaryKeySelective(user);
        }
        return "redirect:/userlist";
    }
}

页面 userlist.html

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8" />
    <title> 用户治理 </title>
    <link href="/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
    <div>
        <nav class="navbar navbar-default" role="navigation">
            <div class="container-fluid">
                <div>
                    <ul  class="nav navbar-nav" >
                        <li><a href="/userlist"> 用户治理 </a></li>
                        <li><a href="#"> 书籍治理 </a></li>
                    </ul>
                </div>
            </div>
        </nav>
    </div>

    <div>
        <h2> 用户治理 </h2>
        <table width="100%" border="0" cellpadding="0" cellspacing="0" class="table_list">
            <thead>
            <tr>
                <th width="20%"> 编号 </th>
                <th width="20%"> 用户名 </th>
                <th width="20%"> 电子邮箱 </th>
                <th width="20%"> 手机 </th>
                <th width="20%"> 操作 </th>
            </tr>
            </thead>
            <tbody>
            <tr th:each="user:${users}">
                <td height="40px"><a th:text="${user.id}" data-toggle="modal" data-target="#myModal" onclick="values(this)"></a></td>
                <td th:text="${user.username}"></td>
                <td th:text="${user.email}"></td>
                <td th:text="${user.mobile}"></td>
                <td><a href="#" class="delete_a" th:value="${user.id}"> 删除 </a></td>
            </tr>
            </tbody>
        </table>
    </div>
</div>
<script src="/js/jquery-2.2.1.min.js"></script>
<script src="/js/bootstrap.min.js"></script>
</body>
</html>

8，在 ZbookApplication 上加上注解扫描

@ComponentScan(basePackages = {"com.zb"})
@MapperScan("com.zb.mapper")

9、顺便把分页加上（依赖包之前曾经加了）

service 层

    @Override
    public PageInfo<User> selectAll(int pageNum, int pageSize) {PageHelper.startPage(pageNum, pageSize);
        List<User> users = userDao.selectAll();
        PageInfo<User> pageInfo = new PageInfo<>(users);
        return pageInfo;
    }

controller 层

public String getUserList(Model model, PageInfo pageInfo){int pageNum  = (pageInfo.getPageNum() == 0)? 1 : pageInfo.getPageNum();
        int pageSize  = (pageInfo.getPageSize() == 0)? 10 : pageInfo.getPageSize();
        PageInfo<User> result = userService.selectAll(pageNum, pageSize);
        model.addAttribute("users", result.getList());
        model.addAttribute("pageInfo", result);
        return "userlist";
    }

页面批改：

<div id="example" style="text-align: center"> <ul id="pageLimit"></ul> </div>
<input type="hidden" id="pageNum" name="pageNum" th:value="${pageInfo.pageNum}" />
<input type="hidden" id="pages" name="pages" th:value="${pageInfo.pages}" />
<script src="/js/bootstrap-paginator.min.js"></script>
<script>
    $('#pageLimit').bootstrapPaginator({currentPage: $("#pageNum").val(),
        totalPages: $("#pages").val(),
        size: "normal",
        bootstrapMajorVersion: 3,
        alignment: "right",
        numberOfPages: 5,
        itemTexts: function (type, page, current) {switch (type) {
                case "first": return "首页";
                case "prev": return "上一页";
                case "next": return "下一页";
                case "last": return "末页";
                case "page": return page;
            }
        },
        onPageClicked: function (event, originalEvent, type, page){// 给每个页眉绑定一个事件，其实就是 ajax 申请，其中 page 变量为以后点击的页上的数字。window.location.href = "userlist?pageNum=" + page;
        }
    });
    $(function(){$(".delete_a").click(function(){var userId=$(this).attr("value");
            if(confirm("确认删除吗？")){
                window.location.href="/userdelete?id=" + userId;
                return ;
            }
        });
    });
</script>

此时目录

此时重启，输出 http://localhost:8080/userlist
就会看到 user 列表，也能够分页。

五、简略登录，用 filter 实现

1、

package com.zb.filter;

import com.zb.model.User;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@WebFilter(filterName = "sessionFilter",urlPatterns = {"/*"})
public class SessionFilter implements Filter {

    String NO_LOGIN = "您还未登录";

    String[] includeUrls = new String[]{"/login","/login_in"};

    @Override
    public void init(FilterConfig filterConfig) throws ServletException { }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {HttpServletRequest request = (HttpServletRequest)servletRequest;
        HttpServletResponse response = (HttpServletResponse)servletResponse;
        HttpSession session = request.getSession();
        String url = request.getRequestURI();
        boolean needFilter = isNeedFilter(url);

        // 动态资源放行
        if(url.endsWith(".css")||url.endsWith(".js")||url.endsWith(".jpg")
                ||url.endsWith(".gif")||url.endsWith(".png")){filterChain.doFilter(servletRequest, servletResponse);
            return;
        }

        if(!needFilter){filterChain.doFilter(servletRequest, servletResponse);
        } else {User user = (User)session.getAttribute(session.getId());
            if(user != null){filterChain.doFilter(servletRequest, servletResponse);
            } else {String requestType = request.getHeader("X-Requested-With");
                // 判断是否是 ajax 申请
                if(requestType!=null && "XMLHttpRequest".equals(requestType)){response.getWriter().write(this.NO_LOGIN);
                }else{// 重定向到登录页(须要在 static 文件夹下建设此 html 文件)
                    response.sendRedirect(request.getContextPath()+"/login");
                }
                return;
            }
        }
    }

    public boolean isNeedFilter(String uri) {for (String includeUrl : includeUrls) {if(includeUrl.equals(uri)) {return false;}
        }
        return true;
    }

    @Override
    public void destroy() {}
}

2、在 ZbookApplication 上加注解

@ServletComponentScan

3、在 LoginController 下写登录逻辑

package com.zb.controller;

import com.zb.model.User;
import com.zb.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

@Controller
public class LoginController {
    @Autowired
    private UserService userService;

    @RequestMapping("/login")
    public String login(){return "login";}

    @RequestMapping(value = "/login_in", method = RequestMethod.POST)
    public String login_in(User user, HttpServletRequest request, Model model){User user1 = userService.validateUser(user.getUsername(), user.getPassword());
        if(user1 == null){return "login";}
        
        HttpSession session = request.getSession();
        session.setAttribute(session.getId(), user1);
        return "redirect:/userlist";

    }

    @RequestMapping("/logout")
    public String logout(HttpServletRequest request){request.getSession().removeAttribute(request.getSession().getId());
        return "login";
    }
}

当初就能够简略的登录了

4、批改页面让页面显示用户名和退出

<div>
    <a href="logout" style="display: inline-block; float: right"> 退出 </a>
    <p th:text="${#httpSession.getAttribute(#httpSession.getId()).username}" style="display: inline-block; float: right"></p>
    <p style="display: inline-block; float: right"> 您好，</p>
</div>

六、权限

权限治理咱们应用当初比拟风行的 shiro, 原理就不说了，间接说怎么应用

1、加依赖包

<!--shiro 权限 -->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-core</artifactId>
            <version>1.2.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-web</artifactId>
            <version>1.2.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.2.4</version>
        </dependency>
        <dependency>
            <groupId>com.github.theborakompanioni</groupId>
            <artifactId>thymeleaf-extras-shiro</artifactId>
            <version>2.0.0</version>
        </dependency>

2、建表

shiro 须要 5 张表：用户、角色、权限、用户角色关联表，角色权限关联表
用户表已建设，当初续建 4 张表

CREATE TABLE `role` (`id` int(11) NOT NULL AUTO_INCREMENT,
  `rolename` varchar(255) DEFAULT NULL,
  `description` varchar(255) DEFAULT NULL,
  `status` varchar(255) DEFAULT NULL,
  `create_time` DATE DEFAULT NULL,
  `update_time` DATE DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

CREATE TABLE `permission` (`id` int(11) NOT NULL AUTO_INCREMENT,
  `permissionname` varchar(255) DEFAULT NULL,
  `resourceType` varchar(255) DEFAULT NULL,
  `url` varchar(255) DEFAULT NULL,
  `permission` varchar(255) DEFAULT NULL,
  `status` varchar(255) DEFAULT NULL,
  `create_time` DATE DEFAULT NULL,
  `update_time` DATE DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

CREATE TABLE `user_role` (`id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` varchar(255) DEFAULT NULL,
  `role_id` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

CREATE TABLE `role_permission` (`id` int(11) NOT NULL AUTO_INCREMENT,
  `role_id` varchar(255) DEFAULT NULL,
  `permission_id` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
insert into `role`(id, rolename, description, status, create_time, update_time) VALUES (1, 'admin', '管理员', 'use', '2018-08-10', '2018-08-10');
insert into `role`(id, rolename, description, status, create_time, update_time) VALUES (2, 'manage', '经理', 'use', '2018-08-10', '2018-08-10');
insert into `role`(id, rolename, description, status, create_time, update_time) VALUES (3, 'user', '普通用户', 'use', '2018-08-10', '2018-08-10');

INSERT INTO `permission` (id, permissionname, resourceType, url, permission, status, create_time, update_time) VALUES (1,'用户治理','menu', 'userlist','user:list','use','2018-08-10', '2018-08-10');
INSERT INTO `permission` (id, permissionname, resourceType, url, permission, status, create_time, update_time) VALUES (2,'用户批改','menu', 'useredit','user:edit','use','2018-08-10', '2018-08-10');
INSERT INTO `permission` (id, permissionname, resourceType, url, permission, status, create_time, update_time) VALUES (3,'用户删除','menu', 'userdelete','user:delete','use','2018-08-10', '2018-08-10');

INSERT INTO `user_role` (id, user_id, role_id) VALUES (1, 1 ,1);
INSERT INTO `user_role` (id, user_id, role_id) VALUES (2, 1 ,2);
INSERT INTO `user_role` (id, user_id, role_id) VALUES (3, 1 ,3);
INSERT INTO `user_role` (id, user_id, role_id) VALUES (4, 2 ,2);
INSERT INTO `user_role` (id, user_id, role_id) VALUES (5, 3 ,3);
INSERT INTO `user_role` (id, user_id, role_id) VALUES (6, 4 ,3);

INSERT INTO `role_permission` (id, role_id, permission_id) VALUES (1, 1, 1);
INSERT INTO `role_permission` (id, role_id, permission_id) VALUES (2, 1, 2);
INSERT INTO `role_permission` (id, role_id, permission_id) VALUES (3, 1, 3);
INSERT INTO `role_permission` (id, role_id, permission_id) VALUES (4, 2, 1);
INSERT INTO `role_permission` (id, role_id, permission_id) VALUES (5, 2, 2);
INSERT INTO `role_permission` (id, role_id, permission_id) VALUES (6, 3, 1);

3、加载 bean

package com.zb.shiro;

import java.util.LinkedHashMap;
import java.util.Map;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.filter.DelegatingFilterProxy;

/**
 * Shiro 配置
 *
 Apache Shiro 外围通过 Filter 来实现，就如同 SpringMvc 通过 DispachServlet 来主控制一样。既然是应用 Filter 个别也就能猜到，是通过 URL 规定来进行过滤和权限校验，所以咱们须要定义一系列对于 URL 的规定和拜访权限。*/
@Configuration
public class ShiroConfiguration {private static final Logger logger = LoggerFactory.getLogger(ShiroConfiguration.class);


    @Bean
    public FilterRegistrationBean delegatingFilterProxy(){FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
        DelegatingFilterProxy proxy = new DelegatingFilterProxy();
        proxy.setTargetFilterLifecycle(true);
        proxy.setTargetBeanName("shiroFilter");
        filterRegistrationBean.setFilter(proxy);
        return filterRegistrationBean;
    }

    /**
     * ShiroFilterFactoryBean 解决拦挡资源文件问题。* 留神：独自一个 ShiroFilterFactoryBean 配置是或报错的，认为在
     * 初始化 ShiroFilterFactoryBean 的时候须要注入：SecurityManager
     *
     Filter Chain 定义阐明
     1、一个 URL 能够配置多个 Filter，应用逗号分隔
     2、当设置多个过滤器时，全副验证通过，才视为通过
     3、局部过滤器可指定参数，如 perms，roles
     *
     */
    @Bean("shiroFilter")
    public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager){logger.info("ShiroConfiguration.shirFilter()");
        ShiroFilterFactoryBean shiroFilterFactoryBean  = new ShiroFilterFactoryBean();

        // 必须设置 SecurityManager
        shiroFilterFactoryBean.setSecurityManager(securityManager);

        // 拦截器.
        Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();

        // 配置退出过滤器, 其中的具体的退出代码 Shiro 曾经替咱们实现了
        filterChainDefinitionMap.put("/logout", "logout");

        filterChainDefinitionMap.put("/*/*.js", "anon");
        filterChainDefinitionMap.put("/*/*.css", "anon");
        filterChainDefinitionMap.put("/login_in", "anon");
        filterChainDefinitionMap.put("/login", "anon");

        //<!-- 过滤链定义，从上向下程序执行，个别将 /** 放在最为下边 -->: 这是一个坑呢，一不小心代码就不好使了;
        //<!-- authc: 所有 url 都必须认证通过才能够拜访; anon: 所有 url 都都能够匿名拜访 -->
        filterChainDefinitionMap.put("/**", "authc");

        // 如果不设置默认会主动寻找 Web 工程根目录下的 "/login.jsp" 页面
        shiroFilterFactoryBean.setLoginUrl("/login");
        // 登录胜利后要跳转的链接
        shiroFilterFactoryBean.setSuccessUrl("/userlist");
        // 未受权界面;
        shiroFilterFactoryBean.setUnauthorizedUrl("/login");

        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
        return shiroFilterFactoryBean;
    }

    @Bean
    public SecurityManager securityManager(){DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();
        securityManager.setRealm(myShiroRealm());
        return securityManager;
    }

    @Bean
    public MyShiroRealm myShiroRealm(){MyShiroRealm myShiroRealm = new MyShiroRealm();
        return myShiroRealm;
    }

    /**
     *  开启 Shiro 的注解(如 @RequiresRoles,@RequiresPermissions), 需借助 SpringAOP 扫描应用 Shiro 注解的类, 并在必要时进行平安逻辑验证
     * 配置以下两个 bean(DefaultAdvisorAutoProxyCreator 和 AuthorizationAttributeSourceAdvisor)即可实现此性能
     * @return
     */
    @Bean
    public DefaultAdvisorAutoProxyCreator advisorAutoProxyCreator(){DefaultAdvisorAutoProxyCreator advisorAutoProxyCreator = new DefaultAdvisorAutoProxyCreator();
        advisorAutoProxyCreator.setProxyTargetClass(true);
        return advisorAutoProxyCreator;
    }

    /**
     * 开启 aop 注解反对
     * @param securityManager
     * @return
     */
    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager) {AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor();
        authorizationAttributeSourceAdvisor.setSecurityManager(securityManager);
        return authorizationAttributeSourceAdvisor;
    }

    @Bean
    public ShiroDialect shiroDialect() {return new ShiroDialect();
    }

}

4、写 Realm

package com.zb.shiro;

import com.zb.model.Permission;
import com.zb.model.Role;
import com.zb.model.User;
import com.zb.service.UserService;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.annotation.Resource;

/**
 *  身份校验外围类;
 *
 * @version v.0.1
 */
public class MyShiroRealm extends AuthorizingRealm{private static final Logger logger = LoggerFactory.getLogger(MyShiroRealm.class);

    private static String SALT = "mySlalt";

    @Resource
    private UserService userService;

    /**
     * 认证信息.(身份验证)
     * :
     * Authentication 是用来验证用户身份
     * @param token
     * @return
     * @throws AuthenticationException
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {logger.info("MyShiroRealm.doGetAuthenticationInfo()");

        // 获取用户的输出的账号.
        String username = (String)token.getPrincipal();

        // 通过 username 从数据库中查找 User 对象，如果找到，没找到.
        // 理论我的项目中，这里能够依据理论状况做缓存，如果不做，Shiro 本人也是有工夫距离机制，2 分钟内不会反复执行该办法
        User user = userService.selectByUsername(username);
        logger.info("----->>userInfo=" + user.toString());
        if(user == null){return null;}

       /*
        * 获取权限信息: 这里没有进行实现，* 请自行依据 UserInfo,Role,Permission 进行实现；* 获取之后能够在前端 for 循环显示所有链接;
        */
        //userInfo.setPermissions(userService.findPermissions(user));
        userService.findRoleAndPermissions(user);


        // 账号判断;

        // 加密形式;
        // 交给 AuthenticatingRealm 应用 CredentialsMatcher 进行明码匹配，如果感觉人家的不好能够自定义实现
        SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
                user, // 用户名
                user.getPassword(), // 明码
                ByteSource.Util.bytes(user.getUsername() + SALT),//salt=username+salt
                getName()  //realm name);

        // 明文: 若存在，将此用户寄存到登录认证 info 中，无需本人做明码比照，Shiro 会为咱们进行明码比照校验
//      SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
//           userInfo, // 用户名
//           userInfo.getPassword(), // 明码
//             getName()  //realm name
//      );

        return authenticationInfo;
    }

    /**
     * 此办法调用  hasRole,hasPermission 的时候才会进行回调.
     *
     * 权限信息.(受权):
     * 1、如果用户失常退出，缓存主动清空；* 2、如果用户非正常退出，缓存主动清空；* 3、如果咱们批改了用户的权限，而用户不退出零碎，批改的权限无奈立刻失效。*（须要手动编程进行实现；放在 service 进行调用）* 在权限批改后调用 realm 中的办法，realm 曾经由 spring 治理，所以从 spring 中获取 realm 实例，* 调用 clearCached 办法；* :Authorization 是受权访问控制，用于对用户进行的操作受权，证实该用户是否容许进行以后操作，如拜访某个链接，某个资源文件等。* @param principals
     * @return
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {logger.info("权限配置 -->MyShiroRealm.doGetAuthorizationInfo()");

        SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
        User userInfo  = (User)principals.getPrimaryPrincipal();

        /// 在认证胜利之后返回.
        // 设置角色信息.
        // 反对 Set 汇合,
        // 用户的角色对应的所有权限
        for(Role role:userInfo.getRoleList()){authorizationInfo.addRole(role.getRolename());
            for(Permission p:role.getPermissionList()){authorizationInfo.addStringPermission(p.getPermission());
            }
        }
        return authorizationInfo;
    }
}

5、主动生成那四个表的代码，加相干的

@Select("select * from Role where id in (select role_id from user_role where user_id = #{userId})")
List<Role> selectRoleByUserId(@Param("userId") int userId);
@Select("select * from permission where id in (select permission_id from role_permission where role_id = #{roleId})")
List<Permission> selectPermissionIdByRoleId(@Param("roleId") int roleId);

6、批改 LoginController

批改登录办法

    @RequestMapping(value = "/login_in", method = RequestMethod.POST)
    public String login_in(User user, HttpServletRequest request, Model model){User user1 = userService.validateUser(user.getUsername(), user.getPassword());
        if(user1 == null){return "login";}

        // (1) session
//        HttpSession session = request.getSession();
//        session.setAttribute(session.getId(), user1);
//        return "redirect:/userlist";

        // (3) shiro
        String msg ;
        UsernamePasswordToken token = new UsernamePasswordToken(user.getUsername(), user.getPassword());
        token.setRememberMe(true);
        Subject subject = SecurityUtils.getSubject();
        try {subject.login(token);
            if (subject.isAuthenticated()) {
                //shiro 的 session 和 request 的 session 封装的是一个，就是说两个都能够
//                request.getSession().setAttribute(request.getSession().getId(),user);
                subject.getSession().setAttribute(subject.getSession().getId(),user);
                return "redirect:/userlist";
            } else {return "login";}
        } catch (IncorrectCredentialsException e) {msg = "登录明码谬误. Password for account" + token.getPrincipal() + "was incorrect.";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (ExcessiveAttemptsException e) {
            msg = "登录失败次数过多";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (LockedAccountException e) {msg = "帐号已被锁定. The account for username" + token.getPrincipal() + "was locked.";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (DisabledAccountException e) {msg = "帐号已被禁用. The account for username" + token.getPrincipal() + "was disabled.";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (ExpiredCredentialsException e) {msg = "帐号已过期. the account for username" + token.getPrincipal() + "was expired.";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (UnknownAccountException e) {msg = "帐号不存在. There is no user with username of" + token.getPrincipal();
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (UnauthorizedException e) {msg = "您没有失去相应的受权！" + e.getMessage();
            model.addAttribute("message", msg);
            System.out.println(msg);
        }
        return "login";

    }

    @RequestMapping("/logout")
    public String logout(HttpServletRequest request){//        request.getSession().removeAttribute(request.getSession().getId());
        SecurityUtils.getSubject().getSession().removeAttribute(SecurityUtils.getSubject().getSession().getId());
        return "login";
    }

7、批改 contorller 办法，或者在页面外面加权限

@RequestMapping("/userlist")
@RequiresPermissions("user:list")
@RequestMapping("/userdelete")
@RequiresPermissions("user:delete")

这种或者
页面上

<shiro:hasPermission name="user:delete"></shiro:hasPermission>

至此，权限就加好了

欢送关注微信公众号：丰极，回复：springboot1，有我的项目的 github 地址。

正文完
java
发表至： java
2021-01-15
 0
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