EE期末测试
web.xml
EE期末测试
<?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_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>test_14</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>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<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:springmvc-config.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<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>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
springmvc-config.xml
<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<context:component-scan base-package="cn.controller"></context:component-scan>
<mvc:annotation-driven />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<mvc:default-servlet-handler />
</beans>
mybatis-config.xml
<?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>
<properties resource="db.properties"></properties>
<environments default="mysql">
<environment id="mysql">
<transactionManager type="JDBC"></transactionManager>
<dataSource type="POOLED">
<property name="driver" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="cn/mapper/UserMapper.xml" />
</mappers>
</configuration>
db.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/userdb
jdbc.username=root
jdbc.password=1234
applicationContext.xml
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<context:property-placeholder
location="classpath:db.properties" />
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven
transaction-manager="transactionManager" />
<bean id="sqlsessionFactory"
class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation"
value="classpath:mybatis-config.xml" />
<property name="dataSource" ref="dataSource" />
<!-- 配置分页插件#pageHelper -->
<property name="plugins">
<bean class="com.github.pagehelper.PageHelper">
<property name="properties">
<props>
<prop key="dialect">mysql</prop><!-- 配置数据库类型 -->
<prop key="reasonable">true</prop><!-- 配置页码合理化修正 -->
</props>
</property>
</bean>
</property>
</bean>
<!-- <context:component-scan base-package="cn.dao"></context:component-scan> -->
<context:component-scan
base-package="cn.service"></context:component-scan>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="cn.mapper"></property>
</bean>
</beans>
jsp:
addUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>添加用户</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/user/addUser" method="post">
姓名：<input type="text" name="uname"><br>
年龄：<input type="text" name="age"><br>
<input type="submit" value="提交">
</form>
</body>
</html>
erro.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
ERROR
</body>
</html>
updataUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>修改用户</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/user/updateUser" method="post">
用户编号：<input type="text" name="uid" value="${user.uid}" readonly="readonly" /><br>
姓名：<input type="text" name="uname" value="${user.uname}" /><br>
年龄：<input type="text" name="age" value="${user.age}" /><br>
<input type="submit" value="提交" />
</form>
</body>
</html>
user.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>用户信息</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/user/queryUserByUname">
<input type="text" name="uname"><input type="submit" value="提交"> <a href="${pageContext.request.contextPath}/user/toAddUser">添加</a>
<br><br>
</form>
<table border="1px" width="500px">
<tr>
<td>用户编号</td>
<td>姓名</td>
<td>年龄</td>
<td>操作</td>
</tr>
<c:forEach items="${ulist}" var="u">
<tr>
<td>${u.uid}</td>
<td>${u.uname}</td>
<td>${u.age}</td>
<td><a href="${pageContext.request.contextPath}/user/toUpdateUser?uid=${u.uid}">修改</a>/<a href="javascript:del(${u.uid})">删除</a></td>
</tr>
</c:forEach>
</table>
第${pageinfo.pageNum}页/共${pageinfo.pages}页
<a href="${pageContext.request.contextPath}/user/getAll?pageNum=${pageinfo.prePage}">上一页</a>
<c:forEach begin="1" step="1" end="${pageinfo.pages}" var="x">
<a href="${pageContext.request.contextPath}/user/getAll?pageNum=${x}">${x}</a>
</c:forEach>
<a href="${pageContext.request.contextPath}/user/getAll?pageNum=${pageinfo.nextPage}">下一页</a>
</body>
<script type="text/javascript">
function del(uid){
if(window.confirm("确定要删除吗？")){
console.log("跳转");
window.location.href="${pageContext.request.contextPath}/user/deleteUser?uid="+uid;
}else{
console.log("不删除");
}
}
</script>
</html>
userinfo.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<table>
<tr>
<td>编号</td>
<td>姓名</td>
<td>年龄</td>
</tr>
<tr>
<td>${user.uid }</td>
<td>${user.uname }</td>
<td>${user.age }</td>
</tr>
</table>
</body>
</html>
cn.controller
UserController.java
package cn.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import cn.pojo.User;
import cn.service.UserService;
///Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
UserService userService;
// 根据id查询用户
@RequestMapping("/getid")
public String finduserById(Integer uid, Model model) {
User user = userService.finduserById(uid);
model.addAttribute("user", user);
return "user";
}
// 输入用户姓名，模糊查询用户
@RequestMapping("/queryUserByUname")
public String queryByUname(String uname, Model model) {
PageHelper.startPage(1, 3);
List<User> u = userService.queryByUname(uname);
PageInfo<User> p = new PageInfo<User>(u);// 包含了分页信息的类
model.addAttribute("ulist", u);
model.addAttribute("pageinfo", p);
return "user";
}
// 查询所有用户
@RequestMapping("/getAll")
public String getAllUser(Model model, @RequestParam(defaultValue = "1") int pageNum,
@RequestParam(defaultValue = "3") int pageSize) {
PageHelper.startPage(pageNum, pageSize);
List<User> u = userService.getAllUser();
PageInfo<User> p = new PageInfo<User>(u);
model.addAttribute("pageinfo", p);
model.addAttribute("ulist", u);
return "user";
}
// 跳转到添加用户页面
@RequestMapping("/toAddUser")
public String toAddUser() {
return "addUser";
}
// 执行添加用户的
@RequestMapping("/addUser")
public String addUser(User user) {
int t = userService.addUser(user);
if (t > 0)
return "forward:getAll";
else
return "erro";
}
// 删除用户
@RequestMapping("/deleteUser")
public String deleteUser(int uid) {
int t = userService.deleteUser(uid);
if (t > 0)
return "forward:getAll";
else
return "erro";
}
//跳转到修改用户界面
@RequestMapping("/toUpdateUser")
public String toUpdateUser(Integer uid,Model model) {
User u=userService.finduserById(uid);
model.addAttribute("user",u);
return "updateUser";
}
//执行修改用户功能
@RequestMapping("/updateUser")
public String updateUser(User user) {
int t=userService.updateUser(user);
if(t>0)
return "forward:getAll";
else
return "erro";
}
}
cn.mapper
UserMapper.java
package cn.mapper;
import java.util.List;
import cn.pojo.User;
public interface UserMapper {
//根据id查询用户
public User finduserById(Integer uid);
//查询所有用户
public List<User> getAllUser();
//输入用户姓名，模糊查询用户
public List<User> queryByUname(String uname);
//添加用户
public int addUser(User user);
//根据用户编号来删除用户
public int deleteUser(int uid);
//修改用户
public int updateUser(User user);
}
UserMapper.xml
<?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="cn.mapper.UserMapper">
<!-- 根据id查询用户 -->
<select id="finduserById" parameterType="Integer" resultType="cn.pojo.User">
select * from usertab where uid=#{_parameter}
</select>
<!-- 查询所有用户 -->
<select id="getAllUser" resultType="cn.pojo.User">
select * from usertab
</select>
<!-- 输入用户姓名，模糊查询用户 -->
<select id="queryByUname" parameterType="String" resultType="cn.pojo.User">
select * from usertab where uname like concat('%',#{_parameter},'%')
</select>
<!-- 添加用户 -->
<insert id="addUser" parameterType="cn.pojo.User">
insert into usertab(uname,age) values(#{uname},#{age})
</insert>
<!-- 删除指定编号的用户 -->
<delete id="deleteUser" parameterType="Integer">
delete from usertab where uid=#{_parameter}
</delete>
<!-- 修改用户 -->
<update id="updateUser" parameterType="cn.pojo.User">
update usertab set uname=#{uname},age=#{age} where uid=#{uid}
</update>
</mapper>
cn.pojo
User.java
package cn.pojo;
public class User {
private int uid;
private String uname;
private int age;
public int getUid() {
return uid;
}
public void setUid(int uid) {
this.uid = uid;
}
public String getUname() {
return uname;
}
public void setUname(String uname) {
this.uname = uname;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "User [uid=" + uid + ", uname=" + uname + ", age=" + age + "]";
}
public User(int uid, String uname, int age) {
super();
this.uid = uid;
this.uname = uname;
this.age = age;
}
public User() {
super();
// TODO Auto-generated constructor stub
}
}
cn.service
UserService.java
package cn.service;
import java.util.List;
import cn.pojo.User;
public interface UserService {
//根据id查询用户
public User finduserById(Integer uid);
//查询所有用户
public List<User> getAllUser();
//输入用户姓名，模糊查询用户
public List<User> queryByUname(String uname);
//添加用户
public int addUser(User user);
//根据用户编号来删除用户
public int deleteUser(int uid);
//修改用户
public int updateUser(User user);
}
UserServiceImpl.java
package cn.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import cn.mapper.UserMapper;
import cn.pojo.User;
@Service("userService")
public class UserServiceImpl implements UserService {
@Autowired
UserMapper userMapper;
//根据id查询用户
public User finduserById(Integer uid) {
return userMapper.finduserById(uid);
}
//查询所有用户
public List<User> getAllUser(){
return userMapper.getAllUser();
}
//输入用户姓名，模糊查询用户
public List<User> queryByUname(String uname){
return userMapper.queryByUname(uname);
}
//添加用户
public int addUser(User user) {
return userMapper.addUser(user);
}
//根据用户编号来删除用户
public int deleteUser(int uid) {
return userMapper.deleteUser(uid);
}
//修改用户
public int updateUser(User user) {
return userMapper.updateUser(user);
}
}
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