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关于java:java开发框架之SSM整合框架

jiezi

一、搭建环境
1、创立数据库表和表构造
create table account(
id INT identity(1,1) primary key,
name varchar(20),
[money] DECIMAL
)
2、创立 maven 的工程 SSM，在 pom.xml 文件引入依赖
<?xml version=”1.0″ encoding=”UTF-8″?>
<project xmlns=”http://maven.apache.org/POM/4.0.0″ xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance”
xsi:schemaLocation=”http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/m…d”>
<modelVersion>4.0.0</modelVersion>
<groupId>com.mingqi</groupId>
<artifactId>SSM</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>SSM Maven Webapp</name>
<!– FIXME change it to the project’s website –>
<url>http://www.example.com</url>
<properties>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<spring.version>5.0.2.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<mysql.version>5.1.6</mysql.version>
<mybatis.version>3.4.5</mybatis.version>

</properties>
<dependencies>

<!-- spring -->
<dependency>
  <groupId>org.aspectj</groupId>
  <artifactId>aspectjweaver</artifactId>
  <version>1.6.8</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-aop</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-context</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-web</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-webmvc</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-test</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-tx</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-jdbc</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>4.12</version>
  <scope>compile</scope>
</dependency>
<dependency>
  <groupId>com.microsoft.sqlserver</groupId>
  <artifactId>sqljdbc4</artifactId>
  <version>4.0</version>
</dependency>
<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>servlet-api</artifactId>
  <version>2.5</version>
  <scope>provided</scope>
</dependency>
<dependency>
  <groupId>javax.servlet.jsp</groupId>
  <artifactId>jsp-api</artifactId>
  <version>2.0</version>
  <scope>provided</scope>
</dependency>
<dependency>
  <groupId>jstl</groupId>
  <artifactId>jstl</artifactId>
  <version>1.2</version>
</dependency>
<!-- log start -->
<dependency>
  <groupId>log4j</groupId>
  <artifactId>log4j</artifactId>
  <version>${log4j.version}</version>
</dependency>
<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-api</artifactId>
  <version>${slf4j.version}</version>
</dependency>
<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-log4j12</artifactId>
  <version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<dependency>
  <groupId>org.mybatis</groupId>
  <artifactId>mybatis</artifactId>
  <version>${mybatis.version}</version>
</dependency>
<dependency>
  <groupId>org.mybatis</groupId>
  <artifactId>mybatis-spring</artifactId>
  <version>1.3.0</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-tx</artifactId>
  <version>${spring.version}</version>
</dependency>
<dependency>
  <groupId>c3p0</groupId>
  <artifactId>c3p0</artifactId>
  <version>0.9.1.2</version>
  <type>jar</type>
  <scope>compile</scope>
</dependency>

</dependencies>
<build>

<finalName>SSM</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
  <plugins>
    <plugin>
      <artifactId>maven-clean-plugin</artifactId>
      <version>3.1.0</version>
    </plugin>
    <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
    <plugin>
      <artifactId>maven-resources-plugin</artifactId>
      <version>3.0.2</version>
    </plugin>
    <plugin>
      <artifactId>maven-compiler-plugin</artifactId>
      <version>3.8.0</version>
    </plugin>
    <plugin>
      <artifactId>maven-surefire-plugin</artifactId>
      <version>2.22.1</version>
    </plugin>
    <plugin>
      <artifactId>maven-war-plugin</artifactId>
      <version>3.2.2</version>
    </plugin>
    <plugin>
      <artifactId>maven-install-plugin</artifactId>
      <version>2.5.2</version>
    </plugin>
    <plugin>
      <artifactId>maven-deploy-plugin</artifactId>
      <version>2.8.2</version>
    </plugin>
  </plugins>
</pluginManagement>

</build>
</project>

3、部署 ssm_web 的我的项目，只有把 ssm_web 我的项目加​​java 培训​​入到 tomcat 服务器中即可
4、编写实体类
package com.mingqi.domain;
import java.io.Serializable;
public class Account implements Serializable {

public void setId(Integer id) {this.id = id;}
public void setName(String name) {this.name = name;}
public void setMoney(Double money) {this.money = money;}
public Integer getId() {return id;}
public String getName() {return name;}
public Double getMoney() {return money;}
private Integer id;
private String name;
private Double money;
@Override
public String toString() {
    return "Account{" +
            "id=" + id +
            ", name='" + name + '\'' +
            ", money=" + money +
            '}';
}

}

5、编写 dao 接口
package com.mingqi.dao;
import com.mingqi.domain.Account;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;
import java.util.List;
@Repository
public interface IAccountDao {

@Insert(value="insert into account (name,money) values (#{name},#{money})")
public void  saveAccount(Account account);
@Select("select * from account")
public List<Account> findAll();

}6、编写 service 接口和实现类
package com.mingqi.service;
import com.mingqi.domain.Account;
import java.util.List;
public interface IAccountService {

public void  saveAccount(Account account);
public List<Account> findAll();

}package com.mingqi.service.impl;
import com.mingqi.dao.IAccountDao;
import com.mingqi.domain.Account;
import com.mingqi.service.IAccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service(“accountService”)
public class AccountImpl implements IAccountService {

@Autowired
private IAccountDao accountDao;
@Override
public void saveAccount(Account account) {accountDao.saveAccount(account);
}
@Override
public List<Account> findAll() {System.out.println("业务层：查问所有账户...");
    List<Account> accounts=accountDao.findAll();
    return accounts;
    //return null;
}

}

二、Spring 框架代码的编写

  1. 搭建和测试 Spring 的开发环境
    在 webapp 我的项目中创立 applicationContext.xml 的配置文件，编写具体的配置信息。
    <?xml version=”1.0″ encoding=”UTF-8″?>
    <beans xmlns=”http://www.springframework.org/schema/beans”

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans

    http://www.springframework.or…
    http://www.springframework.or…
    http://www.springframework.or…
    http://www.springframework.or…
    http://www.springframework.or…
    http://www.springframework.or…
    http://www.springframework.or…d”>
    <!– 开启注解扫描，要扫描的是 service 和 dao 层的注解，要疏忽 web 层注解，因为 web 层让 SpringMVC 框架
    去治理 –>
    <context:component-scan base-package=”com.mingqi”>

     <!-- 配置要疏忽的注解 -->
 <context:exclude-filter type="annotation"
                         expression="org.springframework.stereotype.Controller"/>

    </context:component-scan>
    <!– 配置 C3P0 的连接池对象 –>
    <bean id=”dataSource”

       class="org.springframework.jdbc.datasource.DriverManagerDataSource">
 <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
 <property name="url" value="jdbc:sqlserver://localhost:1433;DatabaseName=test"/>
 <property name="username" value="sa"/>
 <property name="password" value="123sa"/>

    </bean>
    <!– 配置 SqlSession 的工厂 –>
    <bean id=”sqlSessionFactory” class=”org.mybatis.spring.SqlSessionFactoryBean”>

     <property name="dataSource" ref="dataSource" />

    </bean>
    <!– 配置扫描 dao 的包 –>
    <bean id=”mapperScanner” class=”org.mybatis.spring.mapper.MapperScannerConfigurer”>

     <property name="basePackage" value="com.mingqi.dao"/>

    </bean>
    <!– 配置 Spring 框架申明式事务管理 –>
    <!– 配置事务管理器 –>
    <bean id=”transactionManager” class=”org.springframework.jdbc.datasource.DataSourceTransactionManager”>

     <property name="dataSource" ref="dataSource" />

    </bean>
    <!– 配置事务告诉 –>
    <tx:advice id=”txAdvice” transaction-manager=”transactionManager”>
    <tx:attributes>
    <tx:method name=”find*” read-only=”true”/>
    <tx:method name=”*” isolation=”DEFAULT”/>
    </tx:attributes>
    </tx:advice>
    <aop:config>
    <aop:advisor advice-ref=”txAdvice” pointcut=”execution(public com.mingqi.service..ServiceImpl.(..))”/>
    </aop:config>
    </beans>
    三、Spring 整合 SpringMVC 框架
    1、搭建和测试 SpringMVC 的开发环境

  2. 在 web.xml 中配置 DispatcherServlet 前端控制器
    <!DOCTYPE web-app PUBLIC

     "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
<display-name>Archetype Created Web Application</display-name>

<!– 配置 Spring 的监听器，默认只加载 WEB-INF 目录下的 applicationContext.xml 配置文件 –>
<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>
<!– 设置配置文件的门路 –>
<context-param>

<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>

</context-param>
<context-param>

<param-name/>
<param-value/>

</context-param>
<!– 配置前端控制器 –>
<servlet>

<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 加载 springmvc.xml 配置文件 -->
<init-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:springmvc.xml</param-value>
</init-param>
<!-- 启动服务器，创立该 servlet-->
<load-on-startup>1</load-on-startup>

</servlet>
<servlet-mapping>

<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>

</servlet-mapping>
<!– 解决中文乱码的过滤器 –>
<filter>

<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
  <param-name>encoding</param-name>
  <param-value>UTF-8</param-value>
</init-param>

</filter>
<filter-mapping>

<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>

</filter-mapping>

</web-app>
2、测试 SpringMVC 的框架搭建是否胜利

  1. 编写 index.jsp 和 list.jsp 编写，超链接
    <%@ page contentType=”text/html;charset=UTF-8″ language=”java” %>
    <html>
    <body>
    <h2> 查问所有!</h2>
    查问所有
    测试查问
    <h3> 测试包 </h3>

<form action=”account/save” method=”post”>

姓名：<input type="text" name="name" /><br/>
金额：<input type="text" name="money" /><br/>
<input type="submit" value="保留"/><br/>

</form>
</body>
</html><%@ page contentType=”text/html;charset=UTF-8″ language=”java” isELIgnored=”false” %>
<%@ taglib prefix=”c” uri=”http://java.sun.com/jsp/jstl/core” %>
<html>
<head>

<title>Title</title>

</head>
<body>
<h3> 查问所有的帐户 </h3>
<c:forEach items=”${list}” var=”account”>

${account.name}

</c:forEach>
</body>
</html>
2、创立 AccountController 类，编写办法，进行测试
package com.mingqi.controller;
import com.mingqi.domain.Account;
import com.mingqi.service.IAccountService;
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 javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
@Controller
@RequestMapping(“/account”)
public class AccountController {

@Autowired
private IAccountService accountService;
/**
 * 查问所有数据
 * @return
 */


@RequestMapping("/findAll")
public String findAll(Model model)
{System.out.println("体现层查问所有");
    accountService.findAll();
    List<Account> list = accountService.findAll();
    model.addAttribute("list",list);
    return "list";
}
@RequestMapping("/save")
public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException
{accountService.saveAccount(account);
    response.sendRedirect(request.getContextPath()+"/account/findAll");
    return;
}

}
配置 tomcat，启动我的项目，进行测试

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