package com.javaweb.common.core.controller;
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import java.beans.PropertyEditorSupport;
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import java.util.Date;
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import java.util.List;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.web.bind.WebDataBinder;
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import org.springframework.web.bind.annotation.InitBinder;
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import com.github.pagehelper.PageHelper;
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import com.github.pagehelper.PageInfo;
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import com.javaweb.common.core.domain.AjaxResult;
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import com.javaweb.common.core.domain.AjaxResult.Type;
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import com.javaweb.common.core.page.PageDomain;
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import com.javaweb.common.core.page.TableDataInfo;
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import com.javaweb.common.core.page.TableSupport;
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import com.javaweb.common.utils.DateUtils;
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import com.javaweb.common.utils.ServletUtils;
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import com.javaweb.common.utils.StringUtils;
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import com.javaweb.common.utils.sql.SqlUtil;
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/**
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* web层通用数据处理
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*
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* @author javaweb
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*/
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public class BaseController
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{
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protected final Logger logger = LoggerFactory.getLogger(BaseController.class);
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/**
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* 将前台传递过来的日期格式的字符串，自动转化为Date类型
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*/
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@InitBinder
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public void initBinder(WebDataBinder binder)
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{
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// Date 类型转换
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binder.registerCustomEditor(Date.class, new PropertyEditorSupport()
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{
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@Override
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public void setAsText(String text)
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{
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setValue(DateUtils.parseDate(text));
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}
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});
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}
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/**
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* 设置请求分页数据
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*/
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protected void startPage()
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{
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PageDomain pageDomain = TableSupport.buildPageRequest();
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Integer pageNum = pageDomain.getPageNum();
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Integer pageSize = pageDomain.getPageSize();
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if (StringUtils.isNotNull(pageNum) && StringUtils.isNotNull(pageSize))
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{
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String orderBy = SqlUtil.escapeOrderBySql(pageDomain.getOrderBy());
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PageHelper.startPage(pageNum, pageSize, orderBy);
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}
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}
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/**
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* 获取request
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*/
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public HttpServletRequest getRequest()
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{
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return ServletUtils.getRequest();
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}
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/**
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* 获取response
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*/
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public HttpServletResponse getResponse()
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{
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return ServletUtils.getResponse();
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}
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/**
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* 获取session
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*/
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public HttpSession getSession()
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{
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return getRequest().getSession();
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}
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/**
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* 响应请求分页数据
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*/
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@SuppressWarnings({ "rawtypes", "unchecked" })
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protected TableDataInfo getDataTable(List<?> list)
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{
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TableDataInfo rspData = new TableDataInfo();
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rspData.setCode(0);
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rspData.setRows(list);
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rspData.setTotal(new PageInfo(list).getTotal());
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return rspData;
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}
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/**
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* 响应返回结果
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*
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* @param rows 影响行数
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* @return 操作结果
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*/
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protected AjaxResult toAjax(int rows)
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{
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return rows > 0 ? success() : error();
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}
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/**
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* 响应返回结果
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*
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* @param result 结果
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* @return 操作结果
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*/
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protected AjaxResult toAjax(boolean result)
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{
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return result ? success() : error();
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}
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/**
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* 返回成功
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*/
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public AjaxResult success()
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{
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return AjaxResult.success();
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}
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/**
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* 返回失败消息
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*/
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public AjaxResult error()
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{
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return AjaxResult.error();
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}
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/**
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* 返回成功消息
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*/
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public AjaxResult success(String message)
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{
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return AjaxResult.success(message);
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}
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/**
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* 返回失败消息
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*/
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public AjaxResult error(String message)
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{
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return AjaxResult.error(message);
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}
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/**
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* 返回错误码消息
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*/
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public AjaxResult error(Type type, String message)
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{
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return new AjaxResult(type, message);
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}
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/**
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* 页面跳转
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*/
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public String redirect(String url)
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{
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return StringUtils.format("redirect:{}", url);
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}
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}
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