终于完成CRUD的功能了,注意,这里会对前面有一些改动,UserController的listUser() 已经改写了,现在把全部整理一下吧。
JSP:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <base href="<%=basePath%>"> <meta name="description" content="easyui help you build your web page easily!"> <title>jQuery EasyUI CRUD Demo</title> <link rel="stylesheet" type="text/css" href="css/easyui/themes/default/easyui.css"> <link rel="stylesheet" type="text/css" href="css/easyui/themes/icon.css"> <link rel="stylesheet" type="text/css" href="css/easyui/demo.css"> <script type="text/javascript" src="js/jquery-easyui-1.4.2/jquery.min.js"></script> <script type="text/javascript" src="js/jquery-easyui-1.4.2/jquery.easyui.min.js"></script> <style type="text/css"> #fm{ margin:0; padding:10px 30px; } .ftitle{ font-size:14px; font-weight:bold; color:#666; padding:5px 0; margin-bottom:10px; border-bottom:1px solid #ccc; } .fitem{ margin-bottom:5px; } .fitem label{ display:inline-block; width:80px; } </style> <script type="text/javascript"> var url; function newUser(){ $('#dlg').dialog('open').dialog('setTitle','新建用户'); $('#fm').form('clear'); url = 'user/addUser'; } function editUser(){ var row = $('#dg').datagrid('getSelected'); // alert(row.userId); if (row){ $('#dlg').dialog('open').dialog('setTitle','编辑用户'); $('#fm').form('load',row); //url = 'user/updateUser?id='+row.userId; url ='user/updateUser'; } } function saveUser(){ $('#fm').form('submit',{ //url:'user/addUser', url: url, onSubmit: function(){ return $(this).form('validate'); }, success: function(result){ var result = eval('('+result+')'); if (result.success){ $.messager.show({ title:'Info', msg:result.msg, showType:'fade', style:{ right:'', bottom:'' } }); $('#dlg').dialog('close'); // close the dialog $('#dg').datagrid('reload'); // reload the user data } else { $.messager.show({ title: 'Error', msg: result.msg }); } } }); } function removeUser(){ var row = $('#dg').datagrid('getSelected'); //alert(row.id); if (row){ $.messager.confirm('Confirm','你确定要删除用户吗?',function(r){ if (r){ $.post('user/removeUser',{id:row.userId},function(result){ if (result.success){ $.messager.show({ title:'Info', msg:result.msg, showType:'fade', style:{ right:'', bottom:'' } }); $('#dg').datagrid('reload'); // reload the user data } else { $.messager.show({ // show error message title: 'Error', msg: result.msg }); } },'json'); } }); } } function doSearch(){ $('#dg').datagrid('load',{ queryUserId: $('#userId').val() }); } </script> </head> <body> <h2>Basic CRUD Application</h2> <div class="demo-info" style="margin-bottom:10px"> <div class="demo-tip icon-tip"> </div> <div>Click the buttons on datagrid toolbar to do crud actions.</div> </div> <table id="dg" title="My Users" class="easyui-datagrid" style="width:700px;height:250px" url="user/listUsers" toolbar="#toolbar" pagination="true" rownumbers="true" fitColumns="true" singleSelect="true"> <thead> <tr> <th field="userId" width="50">UserId</th> <th field="userName" width="50">UserName</th> <th field=passWord width="50">PassWord</th> <th field="enable" width="50">Enable</th> </tr> </thead> </table> <div id="toolbar"> <a href="javascript:void(0);" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="newUser()">New User</a> <a href="javascript:void(0);" class="easyui-linkbutton" iconCls="icon-edit" plain="true" onclick="editUser()">Edit User</a> <a href="javascript:void(0);" class="easyui-linkbutton" iconCls="icon-remove" plain="true" onclick="removeUser()">Remove User</a> <div> <span>User ID:</span> <input id="userId" style="line-height:26px;border:1px solid #ccc"> <a href="javascript:void(0);" class="easyui-linkbutton" plain="true" onclick="doSearch()">Search</a> </div> </div> <div id="dlg" class="easyui-dialog" style="width:400px;height:280px;padding:10px 20px" closed="true" buttons="#dlg-buttons"> <div class="ftitle">User Information</div> <form id="fm" method="post" novalidate> <div class="fitem"> <label>UserId:</label> <input name="userId" class="easyui-validatebox" required="true"> </div> <div class="fitem"> <label>UserName:</label> <input name="userName" class="easyui-validatebox" required="true"> </div> <div class="fitem"> <label>PassWord:</label> <input name="passWord"> </div> <div class="fitem"> <label>Enable:</label> <input name="enable" class="easyui-validatebox" > </div> </form> </div> <div id="dlg-buttons"> <a href="javascript:void(0);" class="easyui-linkbutton" iconCls="icon-ok" onclick="saveUser()">Save</a> <a href="javascript:void(0);" class="easyui-linkbutton" iconCls="icon-cancel" onclick="javascript:$('#dlg').dialog('close')">Cancel</a> </div> </body> </html>
Controller:
package com.yang.bishe.controller; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.ServletRequestUtils; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import com.yang.bishe.entity.Grid; import com.yang.bishe.entity.Json; import com.yang.bishe.entity.User; import com.yang.bishe.service.interfaces.IUserService; @Controller @RequestMapping("/user") public class UserController extends BaseController { @Autowired private IUserService userService; @RequestMapping("/list") public ModelAndView goList(){ return new ModelAndView("user/list"); } @RequestMapping("/listUsers") public String listUser(HttpServletRequest request, HttpServletResponse response) throws Exception { page=ServletRequestUtils.getIntParameter(request, "page", 1);//默认值为1 rows=ServletRequestUtils.getIntParameter(request, "rows", 0); String queryUserId=request.getParameter("queryUserId");//获取要查询的用户账号 Grid grid = new Grid(); String hql; List<User>users; if(queryUserId!=null) { hql="from User as user where user.UserId like '%"+queryUserId+"%'"; }else{ hql="from User"; } users=(List<User>)userService.find(hql, page, rows); grid.setTotal(userService.count("select count(*) from User")); grid.setRows(users); writeJson(grid,response); return null; } @RequestMapping("/addUser") public String addUser(User user,HttpServletRequest request, HttpServletResponse response) throws Exception{ Json json = new Json();//用于向前端发送消息 if(userService.getById(user.getUserId())!=null){ json.setMsg("新建用户失败,用户已存在!"); }else{ userService.save(user); json.setMsg("新建用户成功!"); json.setSuccess(true); } writeJson(json,response); return null; } @RequestMapping("/removeUser") public String removeUser(HttpServletRequest request,HttpServletResponse response) throws Exception{ Json json = new Json();//用于向前端发送消息 String userId=request.getParameter("id"); try{ userService.delete((User)userService.getById(userId));//不懂为啥要加上(User)才对。。 json.setMsg("删除成功!"); json.setSuccess(true); writeJson(json,response); return null; }catch (Exception e){ json.setMsg("删除失败!"+e.getMessage()); writeJson(json,response); return null; } } @RequestMapping("/updateUser") public String updateUser(User user,HttpServletResponse response) throws Exception{ Json json = new Json();//用于向前端发送消息 try{ userService.update(user); json.setMsg("更新成功!"); json.setSuccess(true); writeJson(json,response); return null; }catch(Exception e){ json.setMsg("更新失败!"+e.getMessage()); writeJson(json,response); return null; } } }
其实listUser里面一逻辑可以放到service上的,还没弄。。。
service层没什么,是继承一个baseService
package com.yang.bishe.service.impl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.yang.bishe.dao.IBaseDao; import com.yang.bishe.entity.User; import com.yang.bishe.service.base.BaseServiceImpl; import com.yang.bishe.service.interfaces.IUserService; @Service public class UserServiceImpl extends BaseServiceImpl<User> implements IUserService { @Autowired private IBaseDao<User> userDao; }
userDao都是继承BaseDao的:我就贴一些用到的函数吧(接口啥的就不贴出来了):
package com.yang.bishe.dao; import java.io.Serializable; import java.math.BigInteger; import java.util.List; import java.util.Map; import org.hibernate.Query; import org.hibernate.SQLQuery; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.transform.Transformers; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; @Repository public class BaseDaoImpl<T>implements IBaseDao<T> { @Autowired private SessionFactory sessionFactory; /** * 获得当前事物的session * * @return org.hibernate.Session */ public Session getCurrentSession() { return sessionFactory.getCurrentSession(); } @Override public Serializable save(T o) { if (o != null) { return getCurrentSession().save(o); } return null; } @SuppressWarnings("unchecked") @Override public T getById(Class<T> c, Serializable id) { return (T) getCurrentSession().get(c, id); } @Override public T getByHql(String hql) { Query q = getCurrentSession().createQuery(hql); List<T> l = q.list(); if (l != null && l.size() > 0) { return l.get(0); } return null; } @Override public void delete(T o) { if (o != null) { getCurrentSession().delete(o); } } @Override public void update(T o) { if (o != null) { getCurrentSession().update(o); } } @Override public List<T> find(String hql) { Query q = getCurrentSession().createQuery(hql); return q.list(); } @Override public List<T> find(String hql, int page, int rows) { Query q = getCurrentSession().createQuery(hql); return q.setFirstResult((page - 1) * rows).setMaxResults(rows).list(); } @Override public Long count(String hql) { // Query q = getCurrentSession().createQuery(hql).; // return (Long) q.uniqueResult(); return (Long)getCurrentSession().createQuery(hql).list().get(0); } @Override public int executeHql(String hql) { Query q = getCurrentSession().createQuery(hql); return q.executeUpdate(); } @SuppressWarnings("unchecked") @Override public List<Map> findBySql(String sql) { SQLQuery q = getCurrentSession().createSQLQuery(sql); return q.setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).list(); } @Override public List<Map> findBySql(String sql, int page, int rows) { SQLQuery q = getCurrentSession().createSQLQuery(sql); return q.setFirstResult((page - 1) * rows).setMaxResults(rows).setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).list(); } @Override public int executeSql(String sql) { SQLQuery q = getCurrentSession().createSQLQuery(sql); return q.executeUpdate(); } @Override public BigInteger countBySql(String sql) { SQLQuery q = getCurrentSession().createSQLQuery(sql); return (BigInteger) q.uniqueResult(); } }
效果图:
第二页:
根据userId查找,这里是模糊查询:
编辑用户(弹出的对话框会获取选中的数据):
修改后:
时间: 2024-10-15 21:07:17