SSM框架下實現登入註冊的示例程式碼

阿新 • • 發佈：2020-06-11

基本配置：jdk1.8 tomcat 8 MyEclipse

先打好地基：

SSM框架下實現登入註冊的示例程式碼

spring配置檔案 application.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:jdbc="http://www.springframework.org/schema/jdbc"
 xmlns:context="http://www.springframework.org/schema/context"
 xmlns:mvc="http://www.springframework.org/schema/mvc"
 xsi:schemaLocation="
   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
   http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
   http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
   http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
   http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
   http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
 <!-- 通過註解，將Service的生命週期納入Spring的管理 -->
 <context:annotation-config />
 <!-- 通過註解，將Service的生命週期納入Spring的管理 -->
 <context:component-scan base-package="service"></context:component-scan>
 <bean id="dataSource"
 class="org.springframework.jdbc.datasource.DriverManagerDataSource">
 
 <!-- 配置資料來源 -->
 <property name="driverClassName">
  <value>com.microsoft.sqlserver.jdbc.SQLServerDriver</value>
 </property>
 
 <property name="url">
  <value>jdbc:sqlserver://localhost:1433;DatabaseName=Organic
  </value>
 </property>
 
 <property name="username">
  <value>sa</value>
 </property>
 
 <property name="password">
  <value>123456</value>
 </property>
 
 </bean>
 <!-- 掃描存放SQL語句的Shop.xml -->
 <bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
 <property name="typeAliasesPackage" value="pojo"></property>
 <property name="dataSource" ref="dataSource"></property>
 <property name="mapperLocations" value="classpath:mapper/*.xml"></property>
 </bean>
 <!-- 掃描Mapper，並將其生命週期納入Spring的管理 -->
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
 <property name="basePackage" value="mapper"></property>
 </bean>
 
 <!--4.配置事務管理器 -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 <property name="dataSource" ref="dataSource"></property>
 </bean>
 
 <!--5.開啟註解進行事務管理  transaction-manager：引用上面定義的事務管理器-->
 <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

springMVC配置檔案 :

<?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:jdbc="http://www.springframework.org/schema/jdbc"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:mvc="http://www.springframework.org/schema/mvc"
  xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
    <!-- 掃描Controller,並將其生命週期納入Spring管理 -->
    <context:component-scan base-package="controller">
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 註解驅動，以使得訪問路徑與方法的匹配可以通過註解配置 -->
    <mvc:annotation-driven/>
    <!-- 靜態頁面，如html,css,js,images可以訪問 -->
    <mvc:default-servlet-handler />
    
    <!-- 檢視定位 -->
  <bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="viewClass"
      value="org.springframework.web.servlet.view.JstlView" />
    <property name="prefix" value="/" />
    <property name="suffix" value=".jsp" />
  </bean>
    </beans>

web.xml 配置：

<?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" 
     xmlns:web="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" version="2.5">
 <display-name>OrganicShopWithSSM</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的配置檔案-->
 <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>
 
 <!-- spring mvc核心：分發servlet -->
 <servlet>
 <servlet-name>mvc-dispatcher</servlet-name>
 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 <!-- spring mvc的配置檔案 -->
 <init-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:springMVC.xml</param-value>
 </init-param>
 <load-on-startup>1</load-on-startup>
 </servlet>
 <servlet-mapping>
 <servlet-name>mvc-dispatcher</servlet-name>
 <url-pattern>*.do</url-pattern>
 </servlet-mapping>
 
 <!--配置由Spring 提供的針對中文亂碼的編碼過濾器 -->
 <!-- 編碼過濾器 -->
 <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>
 </filter>
 <filter-mapping>
 <filter-name>CharacterEncodingFilter</filter-name>
 <url-pattern>/*</url-pattern>
 </filter-mapping>
</web-app>

開始第一層啦：

pojo包：UserInfo 類

package pojo;
 
public class UserInfo {
 private String uid;
 private String name;
 private String email;
 private String password;
 public String getUid() {
  return uid;
 }
 public void setUid(String uid) {
  this.uid = uid;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public String getEmail() {
  return email;
 }
 public void setEmail(String email) {
  this.email = email;
 }
 public String getPassword() {
  return password;
 }
 public void setPassword(String password) {
  this.password = password;
 }
 @Override
 public String toString() {
  return "UserInfo [uid=" + uid + ",name=" + name + ",email="
   + email + ",password=" + password + "]";
 } 
}

mapper層：（注意mybatis的xml檔案也要放在mapper層）

ShopMapping.java:

其中@Param註解是為了和xml中的查詢引數進行繫結

package mapper;
import org.apache.ibatis.annotations.Param;
import pojo.UserInfo;
public interface ShopMapper {
 public void register(@Param("name")String name,@Param("email")String email,@Param("password")String password);
  public UserInfo login(@Param("email")String email,@Param("password")String password); 
  public int findUser(@Param("email")String email);
 
}

Shop.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="mapper.ShopMapper">
  <select id="login" resultType="UserInfo" parameterType="String" >
  select * from UserInfo where email=#{email} and password=#{password}
  </select>
  
  <select id="register" resultType="UserInfo">
  insert into UserInfo(name,email,password) values (#{name},#{email},#{password})
  </select>
  
  <select id="findUser" resultType="int">
  select count(*) from UserInfo where email=#{email}
  </select>  
  </mapper>

service層：其實在寫登陸的時候用了int型別，在想登陸也只要在資料庫中查詢表單輸入的資料就行了，在mapper層的xml的檔案中也寫了 select count(*) 查詢個數，但是結果並不好，因為我要做的還有設定session。

package service;
 
import pojo.UserInfo;
 
public interface ShopService {
 //使用者註冊
 void regist(String name,String email,String password);
 //使用者登入
 UserInfo login(String email,String password);
 //驗證
 int findUser(String email); 
}

service實現層：service.Impl

package service.Impl;
 
import mapper.ShopMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import pojo.UserInfo;
import service.ShopService;
 
@Service
public class ShopServiceImpl implements ShopService {
 @Autowired
 public ShopMapper sm;
 
 @Override
 public void regist(String name,String password) {
  sm.register(name,password);
 }
 
 @Override
 public UserInfo login(String email,String password) {
 UserInfo user=sm.login(email,password);
 if(user!=null &&user.getPassword().equals(password)){
  return user;
 }
 return null;
 
 }
 
 @Override
 public int findUser(String email) {
 if(sm.findUser(email)==0){
  return 0;
 }
 return 1;
 } 
}

controller層：

package controller;
 
import javax.servlet.http.HttpSession;
 
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.RequestMethod;
 
import pojo.UserInfo;
import service.ShopService;
 
@Controller
@RequestMapping("")
public class ShopController {
 @Autowired
 public ShopService ss;
 
 @RequestMapping(value = "registerUser",method = RequestMethod.POST)
 public String registerUser(String name,String password) {
 int findUser = ss.findUser(email);
 
 if (findUser == 0) {
  ss.regist(name,password);
  // System.out.println("可以註冊");
  return "login";
 } else {
  // System.out.println("註冊失敗");
  return "register";
 }
 }
 
 @RequestMapping(value = "loginUser",method = RequestMethod.POST)
 public String loginUser(UserInfo user,HttpSession session) {
 // 呼叫service方法
 user = ss.login(user.getEmail(),user.getPassword());
 
 if (user != null) {
  session.setAttribute("u".user);
  return "index";
 }
 return "login";
 
 }
 
 @RequestMapping("/outLogin")
 public String outLogin(HttpSession session){
 session.invalidate();
 return "index";
 
 }
}

在controller層當中，關於註冊的格式要求還需要自行搜尋一下，主要講一下的是登陸。在登陸的這個方法中傳遞了兩個形式引數，UserInfo是實體類，HttpSssion是設定session的關鍵，後面通過session.setAttribute()設定session，這也是在上文中提到的需要session的部分。在後來的登出中可以使用session.invalidate。

到此這篇關於SSM框架下實現登入註冊的示例程式碼的文章就介紹到這了,更多相關SSM 登入註冊內容請搜尋我們以前的文章或繼續瀏覽下面的相關文章希望大家以後多多支援我們！

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