关于java:若依框架的功能代码

web 通用的代码块

package com.ruoyi.common.core.controller;
import java.beans.PropertyEditorSupport;
import java.util.Date;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.ruoyi.common.constant.HttpStatus;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.core.page.PageDomain;
import com.ruoyi.common.core.page.TableDataInfo;
import com.ruoyi.common.core.page.TableSupport;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.sql.SqlUtil;
/**
 * web 层通用数据处理
 * 
* @author ruoyi
 */public class BaseController
{protected final Logger logger = LoggerFactory.getLogger(BaseController.class);
 /**
 * 将前台传递过去的日期格局的字符串，主动转化为 Date 类型
 */
 @InitBinder
 public void initBinder(WebDataBinder binder)
    {
        // Date 类型转换
 binder.registerCustomEditor(Date.class, new PropertyEditorSupport()
        {
            @Override
 public void setAsText(String text)
            {setValue(DateUtils.parseDate(text));
 }
        });
 }
    /**
 * 设置请求分页数据
 */
 protected void startPage()
    {PageDomain pageDomain = TableSupport.buildPageRequest();
 Integer pageNum = pageDomain.getPageNum();
 Integer pageSize = pageDomain.getPageSize();
 if (StringUtils.isNotNull(pageNum) && StringUtils.isNotNull(pageSize))
        {String orderBy = SqlUtil.escapeOrderBySql(pageDomain.getOrderBy());
 PageHelper.startPage(pageNum, pageSize, orderBy);
 }
    }
    /**
 * 响应请求分页数据
 */
 @SuppressWarnings({"rawtypes", "unchecked"})
    protected TableDataInfo getDataTable(List<?> list)
    {TableDataInfo rspData = new TableDataInfo();
 rspData.setCode(HttpStatus.SUCCESS);
 rspData.setMsg("查问胜利");
 rspData.setRows(list);
 rspData.setTotal(new PageInfo(list).getTotal());
 return rspData;
 }
    /**
 * 响应返回后果
 * 
* @param rows 影响行数
 * @return 操作后果
 */
 protected AjaxResult toAjax(int rows)
    {return rows > 0 ? AjaxResult.success() : AjaxResult.error();}
    /**
 * 页面跳转
 */
 public String redirect(String url)
    {return StringUtils.format("redirect:{}", url);
 }
}

分页

package com.ruoyi.common.core.page;
import com.ruoyi.common.utils.StringUtils;
/**
 * 分页数据
 * 
* @author ruoyi
 */public class PageDomain
{
    /** 以后记录起始索引 */
 private Integer pageNum;
 /** 每页显示记录数 */
 private Integer pageSize;
 /** 排序列 */
 private String orderByColumn;
 /** 排序的方向 desc 或者 asc */
 private String isAsc = "asc";
 public String getOrderBy()
    {if (StringUtils.isEmpty(orderByColumn))
        {return "";}
        return StringUtils.toUnderScoreCase(orderByColumn) + " " + isAsc;
 }
    public Integer getPageNum()
    {return pageNum;}
    public void setPageNum(Integer pageNum)
    {this.pageNum = pageNum;}
    public Integer getPageSize()
    {return pageSize;}
    public void setPageSize(Integer pageSize)
    {this.pageSize = pageSize;}
    public String getOrderByColumn()
    {return orderByColumn;}
    public void setOrderByColumn(String orderByColumn)
    {this.orderByColumn = orderByColumn;}
    public String getIsAsc()
    {return isAsc;}
    public void setIsAsc(String isAsc)
    {this.isAsc = isAsc;}
}