7月17日 SSM 周二

<web-app version="2.5" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    
    <servlet>
        <servlet-name>mvcservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:spring-mvc.xmlparam-value>
        init-param>
        <load-on-startup>0load-on-startup>
    servlet>
    <servlet-mapping>
        <servlet-name>mvcservlet-name>
        <url-pattern>*.dourl-pattern>
    servlet-mapping>

    
    <filter>
        <filter-name>encodingFilterfilter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
        <init-param>
            <param-name>encodingparam-name>
            <param-value>UTF-8param-value>
        init-param>
    filter>
    <filter-mapping>
        <filter-name>encodingFilterfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>

    
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>

    
    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:spring.xmlparam-value>
    context-param>

  <display-name>display-name> 
  <welcome-file-list>
    <welcome-file>index.jspwelcome-file>
  welcome-file-list>
web-app>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

    
    <context:component-scan base-package="com.controller">context:component-scan>

    
    <mvc:annotation-driven/>

    
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/view/"/>
        <property name="suffix" value=".jsp"/>
    bean>
beans>

<beans  xmlns="http://www.springframework.org/schema/beans"  
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
xmlns:aop="http://www.springframework.org/schema/aop"   
xmlns:context="http://www.springframework.org/schema/context"  
xmlns:jee="http://www.springframework.org/schema/jee"  
xmlns:lang="http://www.springframework.org/schema/lang"  
xmlns:util="http://www.springframework.org/schema/util"  
xmlns:tx="http://www.springframework.org/schema/tx"  
xmlns:mvc="http://www.springframework.org/schema/mvc"    
xsi:schemaLocation="http://www.springframework.org/schema/beans  

 http://www.springframework.org/schema/beans/spring-beans.xsd   
 http://www.springframework.org/schema/aop    
 http://www.springframework.org/schema/aop/spring-aop.xsd   
 http://www.springframework.org/schema/jee    
 http://www.springframework.org/schema/jee/spring-jee.xsd   
 http://www.springframework.org/schema/lang    
 http://www.springframework.org/schema/lang/spring-lang.xsd   
 http://www.springframework.org/schema/context    
 http://www.springframework.org/schema/context/spring-context.xsd   
 http://www.springframework.org/schema/tx    
 http://www.springframework.org/schema/tx/spring-tx.xsd   
 http://www.springframework.org/schema/util    
 http://www.springframework.org/schema/util/spring-util.xsd   
 http://www.springframework.org/schema/mvc    
 http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

    
    <context:component-scan base-package="com">context:component-scan>

    
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver">property>
        <property name="url" value="jdbc:mysql://localhost:3306/ssm01">property>
        <property name="username" value="root">property>
        <property name="password" value="root">property>
    bean>

    
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource">property>
        <property name="mapperLocations" value="classpath:com/mapper/*.xml">property>
    bean>

    
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.mapper">property>
    bean>
 beans>

package com.controller;

import java.io.IOException;
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.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.dto.Relation;
import com.dto.User;
import com.service.UserService;
import com.util.PageUtils;

@Controller
public class UserController {
    @Autowired
    private UserService userService;

    @RequestMapping("list")
    public String list(HttpServletRequest request,Integer cpage){
        if(cpage==null){
            cpage=1;
        }
        Integer pageSize = 2;
        Integer count = userService.getCount();
        PageUtils pu = new PageUtils(cpage, pageSize, count);
        List userList = userService.findUserList(pu);
        System.out.println(userList);
        request.setAttribute("userList", userList);
        request.setAttribute("pu", pu);
        return "list";
    }
    @RequestMapping("getObj")
    @ResponseBody
    public Map getObj(User user,HttpServletResponse response) throws IOException{
        List relationList = userService.findRelationList();
        User u = userService.getObj(user);
        System.out.println(relationList);
        System.out.println(u);
        Map map = new HashMap();
        map.put("u", u);
        map.put("relationList", relationList);
        response.setCharacterEncoding("utf-8");

        return map;
    }
    @RequestMapping("update")
    public void update(User user,HttpServletResponse response) throws IOException{
        int i = userService.update(user);
        System.out.println(i);
        response.getWriter().print(i);
    }
}

package com.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.dto.Relation;
import com.dto.User;
import com.mapper.UserMapper;
import com.util.PageUtils;

@Service
@Transactional
public class UserService {
    @Autowired
    private UserMapper userMapper;

    public List findUserList(PageUtils pu) {
        return userMapper.findUserList(pu);
    }

    public Integer getCount() {
        return userMapper.getCount();
    }

    public User getObj(User user) {
        return userMapper.getObj(user);
    }

    public List findRelationList() {
        return userMapper.findRelationList();
    }

    public int update(User user) {
        return userMapper.update(user);
    }

}

package com.mapper;

import java.util.List;

import com.dto.Relation;
import com.dto.User;
import com.util.PageUtils;

public interface UserMapper {

    List findUserList(PageUtils pu);

    Integer getCount();

    User getObj(User user);

    List findRelationList();

    int update(User user);

}

<mapper namespace="com.mapper.UserMapper">
    <resultMap type="com.dto.User" id="userMap">
        <id property="userid" column="userid"/>
        <result property="username" column="username"/>
        <result property="password" column="password"/>
        <result property="usersex" column="usersex"/>
        <result property="birthday" column="birthday"/>
        <result property="usertel" column="usertel"/>
        <result property="userlive" column="userlive"/>
        <association property="r" column="rid" resultMap="relationMap"/>
    resultMap>
    <resultMap type="com.dto.Relation" id="relationMap">
        <id property="rid" column="rid"/>
        <result property="rname" column="rname"/>
    resultMap>

    <select id="findUserList" resultMap="userMap">
        select a.*,b.rname from t_user a left join t_relation b on a.rid=b.rid limit ${startIndex},${pageSize}
    select>

    <select id="getCount" resultType="int">
        select count(*) from t_user
    select>

    <select id="getObj" resultMap="userMap">
        select a.*,b.rname from t_user a left join t_relation b on a.rid=b.rid where a.userid=${userid}
    select>

    <select id="findRelationList" resultType="com.dto.Relation">
        select * from t_relation
    select>

    <update id="update">
        update t_user set username=#{username},password=#{password},usersex=#{usersex},birthday=#{birthday},usertel=#{usertel},userlive=#{userlive},rid=${r.rid} where userid=${userid}
    update>
mapper>

package com.dto;

public class User {
    private Integer userid;
    private String username;
    private String password;
    private String usersex;
    private String birthday;
    private String usertel;
    private String userlive;
    private Relation r;
    public User() {
        super();
        // TODO Auto-generated constructor stub
    }
    public User(Integer userid, String username, String password,
            String usersex, String birthday, String usertel, String userlive,
            Relation r) {
        super();
        this.userid = userid;
        this.username = username;
        this.password = password;
        this.usersex = usersex;
        this.birthday = birthday;
        this.usertel = usertel;
        this.userlive = userlive;
        this.r = r;
    }
    @Override
    public String toString() {
        return "User [userid=" + userid + ", username=" + username
                + ", password=" + password + ", usersex=" + usersex
                + ", birthday=" + birthday + ", usertel=" + usertel
                + ", userlive=" + userlive + ", r=" + r + "]";
    }
    public Integer getUserid() {
        return userid;
    }
    public void setUserid(Integer userid) {
        this.userid = userid;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getUsersex() {
        return usersex;
    }
    public void setUsersex(String usersex) {
        this.usersex = usersex;
    }
    public String getBirthday() {
        return birthday;
    }
    public void setBirthday(String birthday) {
        this.birthday = birthday;
    }
    public String getUsertel() {
        return usertel;
    }
    public void setUsertel(String usertel) {
        this.usertel = usertel;
    }
    public String getUserlive() {
        return userlive;
    }
    public void setUserlive(String userlive) {
        this.userlive = userlive;
    }
    public Relation getR() {
        return r;
    }
    public void setR(Relation r) {
        this.r = r;
    }


}

package com.dto;

public class Relation {
    private Integer rid;
    private String rname;
    public Relation() {
        super();
        // TODO Auto-generated constructor stub
    }
    public Relation(Integer rid, String rname) {
        super();
        this.rid = rid;
        this.rname = rname;
    }
    @Override
    public String toString() {
        return "Relation [rid=" + rid + ", rname=" + rname + "]";
    }
    public Integer getRid() {
        return rid;
    }
    public void setRid(Integer rid) {
        this.rid = rid;
    }
    public String getRname() {
        return rname;
    }
    public void setRname(String rname) {
        this.rname = rname;
    }

}

package com.util;

public class PageUtils {

    private Integer cpage;//当前页
    private Integer pageSize;//每页展示最大条数
    private Integer count;//数据总条数
    private Integer totalPage;//总页数
    private Integer startIndex;//起始下标
    private Integer prevPage;//上一页
    private Integer nextPage;//下一页
    //使用此工具类，调用这个构造器
    public PageUtils(Integer cpage, Integer pageSize, Integer count) {
        this.cpage = cpage;
        this.pageSize = pageSize;
        this.count = count;
        calPrevPage();
        calStartIndex();
        calTotalPage();
        calNextPage();
    }
    private void calTotalPage(){//计算总页数
        this.totalPage = count/pageSize + (count%pageSize==0?0:1);
    }
    private void calStartIndex(){//计算起始下标
        this.startIndex = (cpage-1)*pageSize;
    }
    private void calPrevPage(){//计算上一页
        this.prevPage = cpage==1?1:(cpage-1);
    }
    private void calNextPage(){//计算下一页
        this.nextPage = cpage.equals(totalPage)?totalPage:(cpage+1);
    }
    public Integer getCpage() {
        return cpage;
    }
    public void setCpage(Integer cpage) {
        this.cpage = cpage;
    }
    public Integer getPageSize() {
        return pageSize;
    }
    public void setPageSize(Integer pageSize) {
        this.pageSize = pageSize;
    }
    public Integer getCount() {
        return count;
    }
    public void setCount(Integer count) {
        this.count = count;
    }
    public Integer getTotalPage() {
        return totalPage;
    }
    public void setTotalPage(Integer totalPage) {
        this.totalPage = totalPage;
    }
    public Integer getStartIndex() {
        return startIndex;
    }
    public void setStartIndex(Integer startIndex) {
        this.startIndex = startIndex;
    }
    public Integer getPrevPage() {
        return prevPage;
    }
    public void setPrevPage(Integer prevPage) {
        this.prevPage = prevPage;
    }
    public Integer getNextPage() {
        return nextPage;
    }
    public void setNextPage(Integer nextPage) {
        this.nextPage = nextPage;
    }
}

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>


<html>
  <head>
    <base href="<%=basePath%>">

    <title>My JSP 'list.jsp' starting pagetitle>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    

  <link rel="stylesheet" href="<%=basePath%>/css/index_work.css" type="text/css">link>
  <script type="text/javascript" src="../js/jquery-1.8.2.js">script>
    <script type="text/javascript">
        function gopage(cpage){
            location ="list.do?cpage="+cpage;
        }
    script>
  head>

  <body>
    <table>
        <tr>
            <th>useridth>
            <th>usernameth>
            <th>passwordth>
            <th>usersexth>
            <th>birthdayth>
            <th>usertelth>
            <th>userliveth>
            <th>ridth>
            <th>rnameth>
            <th><input type="button" value="添加">th>
        tr>
        <c:forEach items="${userList }" var="u">
            <tr>
                <th>${u.userid }th>
                <th>${u.username }th>
                <th>${u.password }th>
                <th>${u.usersex }th>
                <th>${u.birthday }th>
                <th>${u.usertel }th>
                <th>${u.userlive }th>
                <th>${u.r.rid }th>
                <th>${u.r.rname }th>
                <th><input type="button" value="删除">
                <input type="button" value="修改" onclick="location='<%=basePath%>/view/update.jsp?userid=${u.userid}'">th>
            tr>
        c:forEach>
        <tr>
            <th colspan="21">
                <button onclick="gopage(1)">首页button>
                <button onclick="gopage(${pu.prevPage})">上页button>
                <button onclick="gopage(${pu.nextPage})">下页button>
                <button onclick="gopage(${pu.totalPage})">尾页button>
            th>
        tr>
    table>
  body>
html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>


<html>
  <head>
    <base href="<%=basePath%>">

    <title>My JSP 'update.jsp' starting pagetitle>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    

  <script type="text/javascript" src="<%=basePath%>/js/jquery-1.8.2.js">script>
    <script type="text/javascript">
        var userid = "${param.userid}";
        if(userid==null){
            userid=-1;
        }
        $.post(
            "getObj.do",
            {userid:userid},
            function (data){
                var relationList = data.relationList;
                for ( var i in relationList) {
                    $("select").append("">"+relationList[i].rname+"");
                }
                var u = data.u;
                $("[name='userid']").val(u.userid);
                $("[name='username']").val(u.username);
                $("[name='password']").val(u.password);
                $("[name='usersex'][value="+u.usersex+"]").attr("checked",true);
                $("[name='birthday']").val(u.birthday);
                $("[name='usertel']").val(u.usertel);
                $("[name='userlive']").val(u.userlive);
                $("[name='r.rid']").val(u.r.rid);
            },"json"
        );

        function sub(){
            $.post(
                "update.do",
                $("form").serialize(),
                function (message){
                    if(message==1){
                        alert("修改成功");
                        location="list.do";
                    }else{
                        alert("修改失败");
                    }
                },"json"
            );
        }
    script>
  head>

  <body>
        <form>
            <input type="hidden" name="userid"><br>
            username<input type="text" name="username"><br>
            password<input type="text" name="password"><br>
            usersex<input type="radio" value="男" name="usersex">男
            <input type="radio" value="女" name="usersex">女<br>
            birthday<input type="text" name="birthday"><br>
            usertel<input type="text" name="usertel"><br>
            userlive<input type="text" name="userlive"><br>
            relation
                <select name="r.rid">

                select>
            <br>
        form>
            <input type="button" value="修改" onclick="sub()">
  body>
html>

有时候，我们做错事，是因为该用脑子的时候却动用了感情。