轉載于：http://www.cnblogs.com/caiya928/p/4851686.html?utm_source=tuicool&utm_medium=referral

閑來無事，看了看別人的博客文檔也跟著敲了敲，特地記錄下來，方便以后學習：

spring版本：4.0.6

mybatis版本：3.2.5

所有jar包打包下載：http://pan.baidu.com/s/1qLEaU

1、項目目錄結構

其中，controller包下存放控制層文件，dao下存放各個model類相關的數據庫操作接口，entity下放置各種model類，mappers下放置各個dao對應的映射文件，service服務層就不說了，放置各種service接口，impl是其具體實現類。

2、web.xml文件配置

<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" 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_3_0.xsd"><display-name></display-name> <welcome-file-list><welcome-file>login.jsp</welcome-file></welcome-file-list><!-- Spring配置文件 --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param><!-- 編碼過濾器 --><filter><filter-name>encodingFilter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><async-supported>true</async-supported><init-param><param-name>encoding</param-name><param-value>UTF-8</param-value></init-param></filter><filter-mapping><filter-name>encodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><!-- 配置Spring監聽器 --><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 添加對SpringMVC的支持 --><servlet><servlet-name>SpringMVC</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-mvc.xml</param-value></init-param></servlet><servlet-mapping><servlet-name>SpringMVC</servlet-name><url-pattern>*.do</url-pattern></servlet-mapping></web-app>

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3、log4j.properties配置日志

log4j.rootLogger=DEBUG, Console #Console log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.layout=org.apache.log4j.PatternLayout log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n log4j.logger.java.sql.ResultSet=INFO log4j.logger.org.apache=INFO log4j.logger.java.sql.Connection=DEBUG log4j.logger.java.sql.Statement=DEBUG log4j.logger.java.sql.PreparedStatement=DEBUG

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4、mybatis-config.xml配置

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration><!-- 別名 --><typeAliases><package name="com.java.entity" /> <!-- 后面書寫類全名時默認加該包名前綴如：<resultMap type="User"... --></typeAliases></configuration>

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5、spring-mvc.xml配置

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 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:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <!-- 使用注解的包，包括子集 --><context:component-scan base-package="com.java.controller"></context:component-scan><!-- 視圖解析器 --><bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/"></property><property name="suffix" value=".jsp"></property></bean> </beans>

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6、applicationContext.xml配置

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 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:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <!-- 自動掃描該包下面的bean文件 --><context:component-scan base-package="com.java.service"></context:component-scan><bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"><!-- <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/> --><property name="driverClassName" value="com.mysql.jdbc.Driver"/><property name="url" value="jdbc:mysql://localhost:3306/crm"/><property name="username" value="root"/><property name="password" value="root"/></bean><!-- 配置MyBatis的sqlSessionFactory --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource"></property><property name="configLocation" value="classpath:mybatis-config.xml"></property> <property name="mapperLocations" value="classpath:com/java/mappers/*.xml"></property></bean><!-- Mapper接口所在包名，Spring會自動查找其下的Mapper --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.java.dao"></property><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property></bean><!-- 配置transactionManager事務管理器 --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource"></property></bean><!-- 配置事物通知屬性 --><tx:advice id="txAdvice" transaction-manager="transactionManager"><!-- 定義事物傳播特性 --><tx:attributes><tx:method name="insert" propagation="REQUIRED"/><tx:method name="update*" propagation="REQUIRED" /> <tx:method name="edit*" propagation="REQUIRED" /> <tx:method name="save*" propagation="REQUIRED" /> <tx:method name="add*" propagation="REQUIRED" /> <tx:method name="new*" propagation="REQUIRED" /> <tx:method name="set*" propagation="REQUIRED" /> <tx:method name="remove*" propagation="REQUIRED" /> <tx:method name="delete*" propagation="REQUIRED" /> <tx:method name="change*" propagation="REQUIRED" /> <tx:method name="check*" propagation="REQUIRED" /> <tx:method name="get*" propagation="REQUIRED" read-only="true" /> <tx:method name="find*" propagation="REQUIRED" read-only="true" /> <tx:method name="load*" propagation="REQUIRED" read-only="true" /> <tx:method name="*" propagation="REQUIRED" read-only="true" /> </tx:attributes></tx:advice><!-- 配置事物切面 --><aop:config><aop:pointcut expression="execution(* com.java.service.*.*(..))" id="serviceOperation"/><aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation"/></aop:config></beans>

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7、增刪改查具體實現

主界面很簡單：

詳細html實現：

<%@ page language="java" import="java.util.*" 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"> <html> <head> <base href="<%=basePath%>"><title>My JSP 'userManage.jsp' starting page</title> <link rel="stylesheet" type="text/css"href="${pageContext.request.contextPath}/jquery-easyui-1.3.3/themes/default/easyui.css"> <link rel="stylesheet" type="text/css"href="${pageContext.request.contextPath}/jquery-easyui-1.3.3/themes/icon.css"> <script type="text/javascript"src="${pageContext.request.contextPath}/jquery-easyui-1.3.3/jquery.min.js"></script> <script type="text/javascript"src="${pageContext.request.contextPath}/jquery-easyui-1.3.3/jquery.easyui.min.js"></script> <script type="text/javascript"src="${pageContext.request.contextPath}/jquery-easyui-1.3.3/locale/easyui-lang-zh_CN.js"></script><script type="text/javascript">var url;function searchUser() {$("#dg").datagrid('load', {"userName" : $("#s_userName").val()});}function openUserAddDialog() {$("#dlg").dialog("open").dialog("setTitle", "添加用戶信息");url = "${pageContext.request.contextPath}/user/save.do";}function openUserModifyDialog() {var selectedRows = $("#dg").datagrid("getSelections");if (selectedRows.length != 1) {$.messager.alert("系統提示", "請選擇一條要編輯的數據！");return;}var row = selectedRows[0];$("#dlg").dialog("open").dialog("setTitle", "編輯用戶信息");$("#fm").form("load", row);url = "${pageContext.request.contextPath}/user/save.do?id=" + row.id;}function saveUser() {$("#fm").form("submit", {url : url,onSubmit : function() {if ($("#roleName").combobox("getValue") == "") {$.messager.alert("系統提示", "請選擇用戶角色！");return false;}return $(this).form("validate");},success : function(result) {var result = eval('(' + result + ')');if (result.success) {$.messager.alert("系統提示", "保存成功！");resetValue();$("#dlg").dialog("close");$("#dg").datagrid("reload");} else {$.messager.alert("系統提示", "保存失敗！");return;}}});}function resetValue() {$("#userName").val("");$("#password").val("");$("#trueName").val("");$("#email").val("");$("#phone").val("");$("#roleName").combobox("setValue", "");}function closeUserDialog() {$("#dlg").dialog("close");resetValue();}function deleteUser() {var selectedRows = $("#dg").datagrid("getSelections");if (selectedRows.length == 0) {$.messager.alert("系統提示", "請選擇要刪除的數據！");return;}var strIds = [];for ( var i = 0; i < selectedRows.length; i++) {strIds.push(selectedRows[i].id);}var ids = strIds.join(",");$.messager.confirm("系統提示", "您確定要刪除這<font color=red>"+ selectedRows.length + "</font>條數據嗎？", function(r) {if (r) {$.post("${pageContext.request.contextPath}/user/delete.do", {ids : ids}, function(result) {if (result.success) {$.messager.alert("系統提示", "數據已成功刪除！");$("#dg").datagrid("reload");} else {$.messager.alert("系統提示", "數據刪除失敗，請聯系系統管理員！");}}, "json");}});} </script> </head><body style="margin: 1px"><table id="dg" title="用戶管理" class="easyui-datagrid" fitColumns="true"pagination="true" rownumbers="true"url="${pageContext.request.contextPath}/user/list.do" fit="true"toolbar="#tb"><thead><tr><th field="cb" checkbox="true" align="center"></th><th field="id" width="50" align="center">編號</th><th field="userName" width="50" align="center">用戶名</th><th field="password" width="50" align="center">密碼</th><th field="trueName" width="50" align="center">真實姓名</th><th field="email" width="50" align="center">郵件</th><th field="phone" width="50" align="center">聯系電話</th><th field="roleName" width="50" align="center">角色</th></tr></thead></table><div id="tb"><a href="javascript:openUserAddDialog()" class="easyui-linkbutton"iconCls="icon-add" plain="true">添加</a> <ahref="javascript:openUserModifyDialog()" class="easyui-linkbutton"iconCls="icon-edit" plain="true">修改</a> <ahref="javascript:deleteUser()" class="easyui-linkbutton"iconCls="icon-remove" plain="true">刪除</a><div>&nbsp;用戶名：&nbsp;<input type="text" id="s_userName" size="20"οnkeydοwn="if(event.keyCode == 13)searchUser()" /> <ahref="javascript:searchUser()" class="easyui-linkbutton"iconCls="icon-search" plain="true">查詢</a></div><div id="dlg-buttons"><a href="javascript:saveUser()" class="easyui-linkbutton"iconCls="icon-ok">保存</a> <a href="javascript:closeUserDialog()"class="easyui-linkbutton" iconCls="icon-cancel">關閉</a></div><div id="dlg" class="easyui-dialog"style="width: 730px;height:280px;padding:10px 10px;" closed="true"buttons="#dlg-buttons"><form method="post" id="fm"><table cellspacing="8px;"><tr><td>用戶名：</td><td><input type="text" id="userName" name="userName"class="easyui-validatebox" required="true" />&nbsp;<spanstyle="color: red">*</span></td><td>&nbsp;&nbsp;&nbsp;&nbsp;</td><td>密碼：</td><td><input type="password" id="password" name="password"class="easyui-validatebox" required="true" />&nbsp;<spanstyle="color: red">*</span></td></tr><tr><td>真實姓名：</td><td><input type="text" id="trueName" name="trueName"class="easyui-validatebox" required="true" />&nbsp;<spanstyle="color: red">*</span></td><td>&nbsp;&nbsp;&nbsp;&nbsp;</td><td>郵箱：</td><td><input type="text" id="email" name="email"validType="email" class="easyui-validatebox" required="true" />&nbsp;<spanstyle="color: red">*</span></td></tr><tr><td>聯系電話：</td><td><input type="text" id="phone" name="phone"class="easyui-validatebox" required="true" />&nbsp;<spanstyle="color: red">*</span></td><td>&nbsp;&nbsp;&nbsp;&nbsp;</td><td>用戶角色：</td><td><select name="roleName" class="easyui-combobox"id="roleName" style="width: 154px;" editable="false"panelHeight="auto"><option value="">請選擇角色</option><option value="系統管理員">系統管理員</option><option value="銷售主管">銷售主管</option><option value="客戶經理">客戶經理</option><option value="高管">高管</option></select> &nbsp;<span style="color: red">*</span></td></tr></table></form></div> </body> </html>

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再來看看目錄結構：

UserController：

package com.java.controller;import java.util.HashMap; import java.util.List; import java.util.Map;import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession;import net.sf.json.JSONArray; import net.sf.json.JSONObject;import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam;import com.java.entity.PageBean; import com.java.entity.User; import com.java.service.UserService; import com.java.util.ResponseUtil; import com.java.util.StringUtil; import com.sun.mail.iap.Response;/*** 用戶Controller層* @author Administrator**/ @Controller @RequestMapping("/user") public class UserController {@Resourceprivate UserService userService;/*** 刪除用戶* @param ids* @param res* @return* @throws Exception*/@RequestMapping("/delete")public String delete(@RequestParam(value="ids") String ids,HttpServletResponse res) throws Exception{String[] idStr = ids.split(",");JSONObject jsonObject = new JSONObject();for (String id : idStr) {userService.delete(Integer.parseInt(id));}jsonObject.put("success", true);ResponseUtil.write(res, jsonObject);return null;}/*** 添加或者修改* @param user* @param res* @return* @throws Exception*/@RequestMapping("/save")public String save(User user,HttpServletResponse res) throws Exception{//操作記錄條數，初始化為0int resultTotal = 0;if (user.getId() == null) {resultTotal = userService.add(user);}else{resultTotal = userService.update(user);}JSONObject jsonObject = new JSONObject();if(resultTotal > 0){ //說明修改或添加成功jsonObject.put("success", true);}else{jsonObject.put("success", false);}ResponseUtil.write(res, jsonObject);return null;}/*** 用戶登錄* @param user* @param request* @return* @throws Exception*/@RequestMapping("/login")public String login(User user, HttpServletRequest request) throws Exception{User resultUser = userService.login(user);if (resultUser == null) {request.setAttribute("user", resultUser);request.setAttribute("errorMsg", "用戶名或密碼錯誤");return "login";}else {HttpSession session = request.getSession();session.setAttribute("currentUser", resultUser);return "redirect:/main.jsp";}}/*** 用戶分頁查詢* @param page* @param rows* @param s_user* @param res* @return* @throws Exception*/@RequestMapping("/list")public String list(@RequestParam(value="page",required=false) String page,@RequestParam(value="rows",required=false) String rows,User s_user,HttpServletResponse res) throws Exception{PageBean pageBean=new PageBean(Integer.parseInt(page),Integer.parseInt(rows));Map<String,Object> map=new HashMap<String,Object>();map.put("userName", StringUtil.formatLike(s_user.getUserName()));map.put("start", pageBean.getStart());map.put("size", pageBean.getPageSize());List<User> userList=userService.find(map);Long total=userService.getTotal(map);JSONObject result=new JSONObject();JSONArray jsonArray=JSONArray.fromObject(userList);result.put("rows", jsonArray);result.put("total", total);ResponseUtil.write(res, result);return null;}}

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UserDao：

package com.java.dao;import java.util.List; import java.util.Map;import com.java.entity.User;/*** 用戶DAO接口* * @author Administrator* */ public interface UserDao {/*** 用戶登錄* @param user* @return*/public User login(User user);/*** 用戶查詢* @param map* @return用戶集合*/public List<User> find(Map<String, Object> map);/*** 獲取總記錄數* @param map* @return獲取的total數*/public Long getTotal(Map<String, Object> map);/*** 修改用戶* @param user* @return影響的記錄數*/public int update(User user);/*** 添加用戶* @param user* @return影響的記錄數*/public int add(User user);/*** 刪除用戶* @param id* @return*/public int delete(Integer id);}

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PageBean，用來分頁的一個工具類：

package com.java.entity;/*** 分頁Model類* @author **/ public class PageBean {private int page; // 第幾頁private int pageSize; // 每頁記錄數private int start; // 起始頁public PageBean(int page, int pageSize) {super();this.page = page;this.pageSize = pageSize;}public int getPage() {return page;}public void setPage(int page) {this.page = page;}public int getPageSize() {return pageSize;}public void setPageSize(int pageSize) {this.pageSize = pageSize;}public int getStart() {return (page-1)*pageSize;}}

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User，用戶實體類：

package com.java.entity;/*** 用戶實體* @author Administrator**/ public class User {private Integer id;private String userName;private String password;private String trueName;private String email;private String phone;private String roleName; //角色名稱：系統管理員、銷售主管、客戶經理、高管public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}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 getTrueName() {return trueName;}public void setTrueName(String trueName) {this.trueName = trueName;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}public String getPhone() {return phone;}public void setPhone(String phone) {this.phone = phone;}public String getRoleName() {return roleName;}public void setRoleName(String roleName) {this.roleName = roleName;}}

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UserService：

package com.java.service;import java.util.List; import java.util.Map;import com.java.entity.User;/*** UserService接口* @author Administrator**/ public interface UserService {/*** 用戶登錄* @param user* @return*/public User login(User user);/*** 用戶查詢* @param map* @return*/public List<User> find(Map<String, Object> map);/*** 獲取總記錄數* @param map* @return*/public Long getTotal(Map<String, Object> map);/*** 修改用戶* @param user* @return影響的記錄數*/public int update(User user);/*** 添加用戶* @param user* @return影響的記錄數*/public int add(User user);/*** 刪除用戶* @param id* @return*/public int delete(Integer id); }

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UserServiceImpl：

package com.java.service.impl;import java.util.List; import java.util.Map;import javax.annotation.Resource;import org.springframework.stereotype.Service;import com.java.dao.UserDao; import com.java.entity.User; import com.java.service.UserService;/*** UserService實現類* @author Administrator**/ @Service("userService") public class UserServiceImpl implements UserService{@Resourceprivate UserDao userDao;@Overridepublic User login(User user) {return userDao.login(user);}@Overridepublic List<User> find(Map<String, Object> map) {return userDao.find(map);}@Overridepublic Long getTotal(Map<String, Object> map) {return userDao.getTotal(map);}@Overridepublic int update(User user) {return userDao.update(user);}@Overridepublic int add(User user) {return userDao.add(user);}@Overridepublic int delete(Integer id) {return userDao.delete(id);} }

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ResponseUtil工具類，主要用于返回json數據：

package com.java.util;import java.io.PrintWriter;import javax.servlet.http.HttpServletResponse;public class ResponseUtil {public static void write(HttpServletResponse response,Object object)throws Exception{response.setContentType("text/html;charset=utf-8");PrintWriter out=response.getWriter();out.println(object);out.flush();out.close();} }

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StringUtil，字符串工具類：

package com.java.util;/*** 字符串工具類* @author **/ public class StringUtil {/*** 判斷是否是空* @param str* @return*/public static boolean isEmpty(String str){if(str==null||"".equals(str.trim())){return true;}else{return false;}}/*** 判斷是否不是空* @param str* @return*/public static boolean isNotEmpty(String str){if((str!=null)&&!"".equals(str.trim())){return true;}else{return false;}}/*** 格式化模糊查詢* @param str* @return*/public static String formatLike(String str){if(isNotEmpty(str)){return "%"+str+"%";}else{return null;}} }

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UserMapper.xml，mybatis所謂的動態sql語句，全部封裝在這里：

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.java.dao.UserDao"><!-- 先定義一個Interface，UserMapper，然后Mapper文件的namespace指向的就是這個Interface， UserInterface里定義的方法和UserMapper.xml文件中的一樣, 然后代碼里直接使用接口 --><resultMap type="User" id="UserResult"><result property="id" column="id" /><result property="userName" column="userName" /><result property="password" column="password" /><result property="trueName" column="trueName" /><result property="email" column="email" /><result property="phone" column="phone" /><result property="roleName" column="roleName" /></resultMap><!-- 所謂的動態SQL語句 --><select id="login" parameterType="User" resultMap="UserResult">select * from userInfo where userName = #{userName} and password = #{password} and roleName = #{roleName}</select><!-- 用戶查詢 --><select id="find" parameterType="Map" resultMap="UserResult">select * from userInfo<where><if test="userName!=null and userName!='' ">and userName like #{userName}</if></where><if test="start!=null and size!=null">limit #{start},#{size}</if></select><select id="getTotal" parameterType="Map" resultType="Long">select count(*) from userInfo<where><if test="userName!=null and userName!='' ">and userName like #{userName}</if></where></select><!-- 用戶添加 --><insert id="add" parameterType="User">insert into userInfo values(null,#{userName},#{password},#{trueName},#{email},#{phone},#{roleName})</insert><!-- 用戶修改 --><update id="update" parameterType="User">update userInfo<set><if test="userName != null and userName != ''">userName = #{userName},</if><if test="password != null and password != ''">password = #{password},</if><if test="trueName != null and trueName != ''">trueName = #{trueName},</if><if test="email != null and email != ''">email = #{email},</if><if test="phone != null and phone != ''">phone = #{phone},</if><if test="roleName != null and roleName != ''">roleName = #{roleName},</if></set>where id = #{id}</update><!-- 用戶刪除 --><delete id="delete" parameterType="Integer">delete from userInfo where id = #{id}</delete> </mapper>

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最后是數據表結構：

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相比hibernate，mybatis輕量級很多，但是新手最容易也最難搞定的往往是環境搭建部分，一不留神就是各種jar包沖突，真叫人抓狂啊啊，以后還得留意呵。

轉載于:https://www.cnblogs.com/xiaodeblog/p/5336899.html

總結

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