SSHE框架整合（增删改查）

1.前期准备：jar包（c3p0、jdbc ,各个框架）

web.xml文件：spring的转码的，和Struts2的过滤器

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"><display-name>L1219_SSHE</display-name><welcome-file-list><welcome-file>index.html</welcome-file><welcome-file>index.htm</welcome-file><welcome-file>index.jsp</welcome-file><welcome-file>default.html</welcome-file><welcome-file>default.htm</welcome-file><welcome-file>default.jsp</welcome-file></welcome-file-list><!-- spring --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:app.xml</param-value></context-param><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 转码 --><filter><filter-name>encodingFilter</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><init-param><param-name>forceEncoding</param-name><param-value>true</param-value></init-param></filter><filter-mapping><filter-name>encodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><!-- 过滤器 --><filter><filter-name>struts2</filter-name><filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class></filter><filter-mapping><filter-name>struts2</filter-name><url-pattern>/*</url-pattern></filter-mapping></web-app>

　　Hibernate.cfg.xml的文件，并生成实体类的映射文件，

注意：现在用spring来生成映射文件。

spring的app.xml的配置，用的连接池来连接数据库

Hibernate的各种配置，sessionFactory声明当前session，通过sessionFactory.getCurrentSession()来获取，（DAO层）

声明事务

然后见如下图所示的各种包，在包中实现各接口以及实现类（impl）实现类中主要是个方法（增删改查）

Struts2的配置，主要是Action的方法的配置，(增删改查的action)

注意：name是页面发送的get或post请求的URL地址，class是spring中对应的id， method是Action类中的方法名

DAO层接口

package com.hanqi.dao;import java.util.List;
import java.util.Map;import com.hanqi.entity.Student;public interface StudentDAO {//获取数据列表List<Student> find(int page , int rows,String sort,Map<String,String> where);
//获取数据条数int getTotal(Map<String,String> where);void insert(Student stu);//添加void update(Student stu);//修改void delete(String sno);//删除
}

　　DAO的实现类

package com.hanqi.dao.impl;import java.util.ArrayList;
import java.util.List;
import java.util.Map;import org.hibernate.Query;
import org.hibernate.SessionFactory;import com.hanqi.dao.StudentDAO;
import com.hanqi.entity.Student;public class StudentDAOImpl implements StudentDAO {private SessionFactory  sessionFactory;public void setSessionFactory(SessionFactory sessionFactory) {this.sessionFactory = sessionFactory;}@Overridepublic List<Student> find(int page, int rows, String sort, Map<String, String> where) {//创建基础HQL语句String sql = "from Student where 1=1";//判断传递的的参数String sname =  where.get("sname_s");if(sname != null && !sname.equals("")){sql += " and sname = :sname";}String sclass =  where.get("sclass_s");if(sclass != null && !sclass.equals("")){sql += " and sclass = :sclass";}//排序if(sort != null && !sort.equals("")){sql += " order by " + sort;}//得到HQL//并判断查询条件Query q = sessionFactory.getCurrentSession().createQuery(sql);if(sname != null  && !sname.equals("")){q.setString("sname",sname);}if(sclass != null && !sclass.equals("")){q.setString("sclass",sclass);}List<Student> rtn = new ArrayList<Student>(); rtn = q.setMaxResults(rows)//每页行数.setFirstResult((page-1)*rows).list();//起始页码return rtn;}@Overridepublic int getTotal(Map<String, String> where) {int rtn= 0;//创建基础HQL语句String sql = "select count(1) from Student where 1=1";//判断传递的的参数String sname =  where.get("sname_s");if(sname != null && !sname.equals("")){sql += " and sname = :sname";//and前面加空格}String sclass =  where.get("sclass_s");if(sclass != null && !sclass.equals("")){sql += " and sclass = :sclass";}//得到HQLQuery q = sessionFactory.getCurrentSession().createQuery(sql);if(sname != null  && !sname.equals("")){q.setString("sname",sname);}if(sclass != null && !sclass.equals("")){q.setString("sclass",sclass);}//获取Query对对象，定义集合并实例化List<Object> lo = q.list();if(lo != null && lo.size() > 0){rtn = Integer.parseInt(lo.get(0).toString());//转换成int并赋值}return rtn;}//添加数据@Overridepublic void insert(Student stu){sessionFactory.getCurrentSession().save(stu);}//修改数据@Overridepublic void update(Student stu){sessionFactory.getCurrentSession().update(stu);}//删除@Overridepublic void delete(String sno){//Student st = (Student)se.get(Student.class, sno);//se.delete(st);//HQL方式执行删除sessionFactory.getCurrentSession().createQuery("delete  Student where sno =?").setString(0, sno).executeUpdate();}}

　　service接口

package com.hanqi.service;import java.util.List;
import java.util.Map;import com.hanqi.entity.Student;public interface StudentService {List<Student>getList(int page , int rows,String sort,Map<String,String> where);int getTotal(Map<String,String> where);String getPageJSON(int page, int rows,String sort,Map<String,String> where);//  void insert(Student stu);
//  void update(Student stu);
//  void delete(String sno);//service的添加void addStudent(Student stu);//修改void editStudent(Student stu);//删除void deleteStudent(String sno);
}

　　service的实现类

package com.hanqi.service.impl;import java.util.List;
import java.util.Map;import com.alibaba.fastjson.JSONObject;
import com.hanqi.dao.StudentDAO;
import com.hanqi.entity.Student;
import com.hanqi.service.PageJSON;
import com.hanqi.service.StudentService;public class StudentServiceImpl implements StudentService {private StudentDAO studentDAO;public void setStudentDAO(StudentDAO studentDAO) {this.studentDAO = studentDAO;}@Overridepublic List<Student> getList(int page, int rows, String sort, Map<String, String> where) {// TODO 自动生成的方法存根return studentDAO.find(page, rows, sort, where);}@Overridepublic int getTotal(Map<String, String> where) {// TODO 自动生成的方法存根return studentDAO.getTotal(where);}@Overridepublic String getPageJSON(int page, int rows, String sort, Map<String, String> where) {PageJSON<Student> pj = new PageJSON<Student>();//引用泛型类String rtn = JSONObject.toJSONString(pj);   //"{total:0,rows:[]}";//空的JSON对象int total =  studentDAO.getTotal(where);//符合查询条件的总条数if(total>0){List<Student> ls =  studentDAO.find(page, rows,sort,where);//String ls_json = JSONArray.toJSONString(ls);//转成JSON格式pj.setTotal(total);pj.setRows(ls);rtn = JSONObject.toJSONString(pj);//转义字符，转成JSON读取的格式//rtn =  "{\"total\":"+total+",\"rows\":"+ls_json+"}" ;}return rtn;}// @Override
//  public void insert(Student stu) {
//      // TODO 自动生成的方法存根
//      studentDAO.insert(stu);
//  }
//
//
//  @Override
//  public void update(Student stu) {
//      // TODO 自动生成的方法存根
//      studentDAO.update(stu);
//
//  }
//
//
//  @Override
//  public void delete(String sno) {
//      // TODO 自动生成的方法存根
//      studentDAO.delete(sno);
//  }@Overridepublic void addStudent(Student stu) {// TODO 自动生成的方法存根studentDAO.insert(stu);}@Overridepublic void editStudent(Student stu) {// TODO 自动生成的方法存根studentDAO.update(stu);}@Overridepublic void deleteStudent(String sno) {// TODO 自动生成的方法存根studentDAO.delete(sno);}}

　　Action

package com.hanqi.action;import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.Map;import javax.servlet.http.HttpServletResponse;import org.apache.struts2.ServletActionContext;import com.hanqi.entity.Student;
import com.hanqi.service.StudentService;public class StudentAction {private StudentService studentService;HttpServletResponse response = ServletActionContext.getResponse();public void setStudentService(StudentService studentService) {this.studentService = studentService;}//接受参数private int page;private int rows;private String sort;private String order;private String sname_s;private String sclass_s;//添加的参数private String sno ;private String sname ;private String ssex;private String sbirthday;private String sclass;//接受参数表示添加或修改private String type ;public String getType() {return type;}public void setType(String type) {this.type = type;}public String getSno() {return sno;}public void setSno(String sno) {this.sno = sno;}public String getSname() {return sname;}public void setSname(String sname) {this.sname = sname;}public String getSsex() {return ssex;}public void setSsex(String ssex) {this.ssex = ssex;}public String getSbirthday() {return sbirthday;}public void setSbirthday(String sbirthday) {this.sbirthday = sbirthday;}public String getSclass() {return sclass;}public void setSclass(String sclass) {this.sclass = sclass;}public StudentService getStudentService() {return studentService;}public int getPage() {return page;}public void setPage(int page) {this.page = page;}public int getRows() {return rows;}public void setRows(int rows) {this.rows = rows;}public String getSort() {return sort;}public void setSort(String sort) {this.sort = sort;}public String getOrder() {return order;}public void setOrder(String order) {this.order = order;}public String getSname_s() {return sname_s;}public void setSname_s(String sname_s) {this.sname_s = sname_s;}public String getSclass_s() {return sclass_s;}public void setSclass_s(String sclass_s) {this.sclass_s = sclass_s;}@Overridepublic String toString() {return "StudentAction [page=" + page + ", rows=" + rows + ", sort=" + sort + ", order=" + order + ", sname_s="+ sname_s + ", sclass_s=" + sclass_s + "]";}//返回数据列表public void getStudentList(){System.out.println("this="+this);//调用serIvetry{//查询参数if(sname_s != null){sname_s  = new String(sname_s.getBytes("ISO-8859-1"),"UTF-8");}if(sclass_s != null){sclass_s  = new String(sclass_s.getBytes("ISO-8859-1"),"UTF-8");}System.out.println("sname_s="+sname_s+"sclass_s="+sclass_s);//对条件进行打包Map<String,String> where = new HashMap<String,String>();where.put("sname_s", sname_s);where.put("sclass_s", sclass_s);//对分页情况的判断//组合排序语句String  ls = "";if(sort != null && order != null){ls= sort + " " + order;//注意加空格}//System.out.println("ls="+ls);String json =  studentService.getPageJSON(page, rows,ls,where);System.out.println("json="+json);//返回数据HttpServletResponse response = ServletActionContext.getResponse();response.setCharacterEncoding("UTF-8");response.setContentType("text/json");response.getWriter().println(json);}catch(Exception e){e.printStackTrace();}}//添加public void getSave(){HttpServletResponse response = ServletActionContext.getResponse();String msg = "{'success':true,'message':'保存成功'}";if(sno != null && type != null){try{Student stu = new Student();stu.setSno(sno);stu.setSclass(sclass);stu.setSname(sname);stu.setSsex(ssex);if(sbirthday !=null && !sbirthday.trim().equals("")){SimpleDateFormat  sdf = new SimpleDateFormat("yyyy-MM-dd");stu.setSbirthday(sdf.parse(sbirthday));}if(type.equals("add"))//根据type判断按钮调用方法{studentService.addStudent(stu);}else{studentService.editStudent(stu);}}catch(Exception e){msg = "{'success':false,'message':'访问失败'}";}try {response.getWriter().print(msg);} catch (IOException e) {// TODO 自动生成的 catch 块e.printStackTrace();}}else{msg = "{'success':false,'message':'访问异常'}";try {response.getWriter().print(msg);} catch (IOException e) {// TODO 自动生成的 catch 块e.printStackTrace();}}}}

　删除的action

package com.hanqi.action;import java.io.IOException;import javax.servlet.http.HttpServletResponse;import org.apache.struts2.ServletActionContext;import com.hanqi.service.StudentService;public class DeleteStudentAction {private StudentService studentService;HttpServletResponse response = ServletActionContext.getResponse();public void setStudentService(StudentService studentService) {this.studentService = studentService;}//接受删除的参数private String snos;public String getSnos() {return snos;}public void setSnos(String snos) {this.snos = snos;}//删除public void getDelete(){String msg = "{'success':true,'message':'删除成功'}";if(snos != null ){System.out.println("snos=="+snos);try{String [] sno = snos.split(",");//分割for(String s : sno){studentService.deleteStudent(s);}}catch(Exception e){msg = "{'success':false,'message':'访问异常'}";}}else{msg = "{'success':false,'message':'删除失败'}";}try {response.getWriter().print(msg);} catch (IOException e) {// TODO 自动生成的 catch 块e.printStackTrace();}}}

　　页面显示层

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<!-- 顺序不可以乱 -->
<!-- 1.jQuery的js包 -->
<script type="text/javascript" src="jquery-easyui-1.4.4/jquery.min.js"></script>
<!-- 2.css资源 -->
<link  rel="stylesheet" type="text/css" href="jquery-easyui-1.4.4/themes/default/easyui.css">
<!-- 3. 图标资源 -->
<link  rel="stylesheet" type="text/css" href="jquery-easyui-1.4.4/themes/icon.css">
<!-- 4.easyui的js包 -->
<script type="text/javascript" src="jquery-easyui-1.4.4/jquery.easyui.min.js"></script>
<!-- 5.本地语言 -->
<script type="text/javascript" src="jquery-easyui-1.4.4/locale/easyui-lang-zh_CN.js"></script>
</head>
<body>
<script type="text/javascript">//把long型的日期转成yyyy-MM-dd
function getDate(date)
{//得到日期对象var d = new Date(date);//得到年  月  日var year = d.getFullYear();var month = (d.getMonth()+1);var day = d.getDate();//拼装var rtn = year+"-"+(month<10 ? "0"+month : month) + "-"+(day<10 ? "0"+day : day);return rtn;
}var type = "add";//定义点击按钮，初始化是添加的$(function(){$("#hh").datagrid({url:'studentAction.action',//Struts.xml的name//冻结列frozenColumns:[[{field:'id',checkbox:true},//复选框{field:'sno',title:'学号',width:100}  ]],//定义列  列配置对象columns:[[    {field:'sname',title:'姓名',width:200,align:'center'},    {field:'ssex',title:'性别',width:200,align:'center',formatter: function(value,row,index){if(value == '男'||value == 'f'){return '男';}else{return '女';}},styler:function(value,row,index){if(value=='男'|| value=='f'){return 'background-color:#ccccff;color:red;';}}},{field:'sbirthday',title:'生日',width:200,align:'right',formatter:function(value, row, index){if(value && value !=""){return getDate(value);}else{return '无';}}},{field:'sclass',title:'班级',width:200,align:'center'}]] ,fitColumns:true,       //列自适应宽度，不能和冻结列同时设置为truestriped:true,           //斑马线idField:'sno',     //主键列rownumbers:true,        //显示行号singleSelect:false,      //是否单选pagination:true,         //分页栏pageList:[8,16,24,32] ,  //每页行数选择列表pageSize:8   ,            //初始每页行数remoteSort:true  ,      //是否服务器端排序，设成false才能客户端排序sortName:'sno',//排序字段,基于服务器端排序sortOrder:'desc',//排序顺序//顶部工具栏toolbar:[{iconCls:'icon-search',text:'查询',handler:function(){//序列化查询表单var f = $("#form2").serialize();//alert(f);$("#hh").datagrid({url:"studentAction.action?"+f})},//把查询条件带给servlet},{iconCls:'icon-add',text:'添加',handler:function(){type ="add";//$("#sno").textbox({readonly:false});//清除表单旧数据$("#form1").form("reset");//重置表单数据$("#saveStu").dialog('open');}},{iconCls:'icon-edit',text:'修改',handler:function(){type ="edit";//判断是否选中一条数据var data = $("#hh").datagrid('getSelected');if(data){//alert(date);//设置主键字段只读$("#sno").textbox({readonly:true});$("#form1").form("reset");//重置表单数据$('#form1').form('load',{sno:data.sno,sname:data.sname,ssex:data.ssex,sbirthday:getDate(data.sbirthday),sclass:data.sclass});//$("#form1").form()$("#saveStu").dialog({title:'修改学生'}).dialog('open');}else{$.messager.show({title:'提示',msg:'请选中一条记录'});}}},{iconCls:'icon-delete',text:'删除',handler:function(){//getSelections返回所有被选中的行，当没有记录被选中的时候将返回一个空数组。var data = $("#hh").datagrid('getSelections');if(data.length > 0){//alert("条数="+data.length);$.messager.confirm('确认','您确认要删除吗？',function(r){if(r){//alert("fff="+data[0].sno);//使用数组保存选中数据的记录主键var snos=[];for(var i = 0 ; i<data.length;i++){snos [i]= data[i].sno;}//把要删除的主键传递给Servlet$.get("deleteStudent.action?snos="+snos,function(rtn){//alert(rtn);//解析var ms = eval("("+ rtn +")");if(ms.success){//若删除成功刷新页面$("#hh").datagrid('reload');}$.messager.show({title:'提示',msg:ms.message});});}});}else{$.messager.show({title:'提示',msg:'请选择一条要删除的数据'})}}}],});
})</script>
<div id="search" class="easyui-panel" title="查询条件" style="height:80px;width:100%"
data-options="{
iconCls:'icon-search',
collapsible:true}"><form id="form2"><br><table  border="0"  style="margin-left:30px"><tr><td>姓名：<input class="easyui-textbox" id="sname_s" name="sname_s"></td><td>班级：<input class="easyui-textbox" id="sclass_s" name="sclass_s"></td></tr></table></form>
</div><table id="hh"></table><div class="easyui-dialog" id="saveStu" style="width:400px; height:300px"
title="添加学生"
data-options="{
closed:true,
modal:true,
buttons:[{
text:'保存',
iconCls:'icon-save',handler:function(){$('#form1').form('submit',{url:'saveStudent.action?type='+ type,  //onSubmit:function(){var isValid = $(this).form('validate');if(!isValid){$.messager.show({title:'消息',msg:'数据验证未通过'});}return isValid;    // 返回false终止表单提交},success:function(data){var msg = eval('('+ data +')');//eval是js的方法if(!msg.success){alert(msg.message);}else{$('#hh').datagrid('load');$.messager.show({title:'消息',msg:'数据验证通过,保存成功'});$('#saveStu').dialog('close');}}});}},{
text:'取消',
iconCls:'icon-cancel',handler:function(){$('#saveStu').dialog('close')},
}]
}"><form action="" id="form1" method="post"><br><br><table border="0" width=100%><tr><td align="right" width="30%">学号：</td><td><input class="easyui-textbox" id="sno" name="sno" data-options="required:true,validType:'length[3,8]'"></td></tr><tr>    <td align="right" width="30%">姓名：</td><td><input class="easyui-textbox" id="sname" name="sname" data-options="required:true,validType:'length[2,3]'"></td></tr><tr>    <td align="right" width="30%">性别：</td><td><input type="radio" name="ssex" value="男" checked>男<input type="radio"  name="ssex" value="女">女</td></tr><tr><td align="right" >生日：</td><td><input class="easyui-datebox" id="sbirthday" name="sbirthday" data-options="required:false,"></td></tr><tr><td align="right" >班级：</td><td><input class="easyui-textbox" id="sclass" name="sclass" data-options="required:true,validType:'length[5,5]'"></td></tr></table></form></div>
</body>
</html>

转载于:https://www.cnblogs.com/liuyanzeng/p/6206332.html

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