spring+springmvc+mybatis實現簡單使用者註冊和登入
阿新 • • 發佈：2018-12-19
一.建立Dynamic Web Project
專案結構：
mysql建立：
二.程式碼
首先配置web.xml:
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance http://www.springmodules.org/schema/cache/springmodules-cache.xsd http://www.springmodules.org/schema/cache/springmodules-ehcache.xsd" 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>mybatis06-spring-springmvc</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- 對spring的支援 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:beans.xml</param-value> </context-param> <!-- 過濾器 --> <filter> <filter-name>characterEncodingFilter</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>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 對springmvc的支援 --> <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.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>
提供spring支援的beans.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:tx="http://www.springframework.org/schema/tx" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:context="http://www.springframework.org/schema/context" 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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 自動掃描 --> <context:component-scan base-package="com.java.dao"></context:component-scan> <context:component-scan base-package="com.java.service"></context:component-scan> <context:component-scan base-package="com.java.serviceimpl"></context:component-scan> <!-- 配置mysql連線 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${jdbc.driverClassName}"/> <property name="url" value="${jdbc.url}"/> <property name="username" value="${jdbc.username}"/> <property name="password" value="${jdbc.password}"/> </bean> <context:property-placeholder location="classpath:/jdbc.properties"/> <!-- 配置mybatis的SQLSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <!-- 自動掃描mappers.xml檔案 --> <property name="mapperLocations" value="classpath:com/java/mappers/*.xml"></property> <!-- mybatis配置檔案 --> <property name="configLocation" value="classpath:mybatis-config.xml "></property> </bean> <!-- spring自動查詢其下的類 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.java.dao"></property> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> </beans>
提供springmvc支援的springmvc.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:tx="http://www.springframework.org/schema/tx" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:context="http://www.springframework.org/schema/context" 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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 使用註解的包，包括子集 --> <context:component-scan base-package="com.java.controller"/> <!-- 檢視解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/" /> <property name="suffix" value=".jsp" /> </bean> </beans>
簡化包名的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>
<!-- 對entity下的實體類起個別名，起到簡化的作用 -->
<typeAliases>
<package name="com.java.entity"></package>
</typeAliases>
</configuration>
資料庫連線jdbc.properties：
jdbc.driverClassName=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/db_student?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC
jdbc.username=root
jdbc.password=root
User基礎類：
package com.java.entity;
public class User {
private Integer id;
private String userName;
private String passWord;
public User() {
super();
// TODO Auto-generated constructor stub
}
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 User(String userName, String passWord) {
super();
this.userName = userName;
this.passWord = passWord;
}
@Override
public String toString() {
return "User [id=" + id + ", userName=" + userName + ", passWord=" + passWord + "]";
}
}
UserDao：
package com.java.dao;
import com.java.entity.User;
public interface UserDao {
public User login(User user);
public User add(User user);
}
UserService：
package com.java.service;
import com.java.entity.User;
public interface UserService {
public User login(User user);
public User add(User user);
}
ServiceImpl：
package com.java.serviceimpl;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.java.dao.UserDao;
import com.java.entity.User;
import com.java.service.UserService;
@Service("userService")
public class ServiceImpl implements UserService{
@Resource
private UserDao userDao;
public User login(User user) {
// TODO Auto-generated method stub
return userDao.login(user);
}
public User add(User user) {
// TODO Auto-generated method stub
return userDao.add(user);
}
}
UserController：
package com.java.controller;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.java.entity.User;
import com.java.service.UserService;
@Controller
@RequestMapping("/user")
public class UserController {
@Resource
private UserService userService;
@RequestMapping("/login")
public String login(User user,HttpServletRequest request) {
User resultUser=userService.login(user);
System.out.println(resultUser);
if(resultUser==null) {
request.setAttribute("user", user);
request.setAttribute("errorMsg", "使用者名稱或密碼錯誤！");
return "index";
}else {
HttpSession session=request.getSession();
session.setAttribute("currentUser", resultUser);
return "welcome";
}
}
@RequestMapping("/add")
public String add(HttpServletRequest request,HttpServletResponse response){
response.setContentType("text/html");
response.setCharacterEncoding("UTF-8");
String username=request.getParameter("userName");
String password=request.getParameter("passWord");
User users=new User(username, password);
userService.add(users);
return "reback";
}
}
user.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="com.java.dao.UserDao">
<resultMap type="com.java.entity.User" id="UserResult">
<id property="id" column="id"></id>
<result property="userName" column="userName"></result>
<result property="passWord" column="passWord"></result>
</resultMap>
<select id="login" parameterType="com.java.entity.User" resultMap="UserResult">
select * from user where userName=#{userName} and passWord=#{passWord}
</select>
<select id="add" parameterType="com.java.entity.User" resultMap="UserResult">
insert into user (userName,passWord) values(#{userName},#{passWord})
</select>
</mapper>
index.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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">
<title>使用者登入頁面</title>
</head>
<body>
<a href="add.jsp">註冊</a> <br/>
<form action="${pageContext.request.contextPath}/user/login.do" method="post">
userName:<input type="text" name="userName" value="${userName}"/><br/>
passWord:<input type="password" name="passWord" value="${passWord}"/><br/>
<input type="submit" value="登入"/><br/>
<font color="red">${errorMsg}</font>
</form>
</body>
</html>
add.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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">
<title>Insert title here</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/user/add.do" method="post">
userName:<input type="text" name="userName"/>
passWord:<input type="password" name="passWord"><br/>
<input type="submit" value="註冊" />
</form>
</body>
</html>
reback.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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">
<title>登入成功</title>
<script>
function fun(){
alert("確認返回登入頁面");
/* location.href ="http://localhost:8080/mybatis06-spring-springmvc/index.jsp";
*/
window.history.go(-2);
}
</script>
</head>
<body>
<input type="button" value="註冊成功，返回登入頁面" onclick="fun()"/>
</body>
</html>
welcome.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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">
<title>登入成功</title>
</head>
<body>
歡迎 ${currentUser.userName} 來到我們的世界！
</body>
</html>
jar包：
以上+standard.jar+spring全jar
（怎麼這麼多，累死）
看到這的也是很執著了…