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; }}