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SSM框架下如何實(shí)現(xiàn)登錄注冊(cè)

發(fā)布時(shí)間：2020-07-17 11:32:17 來源：億速云 閱讀：364 作者：小豬 欄目：編程語言

小編這次要給大家分享的是SSM框架下如何實(shí)現(xiàn)登錄注冊(cè)，文章內(nèi)容豐富，感興趣的小伙伴可以來了解一下，希望大家閱讀完這篇文章之后能夠有所收獲。

基本配置：jdk1.8   tomcat 8  MyEclipse

先打好地基：

SSM框架下如何實(shí)現(xiàn)登錄注冊(cè)

spring配置文件 application.xml：

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<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">
 <!-- 通過注解，將Service的生命周期納入Spring的管理 -->
 <context:annotation-config />
 <!-- 通過注解，將Service的生命周期納入Spring的管理 -->
 <context:component-scan base-package="service"></context:component-scan>
 <bean id="dataSource"
 class="org.springframework.jdbc.datasource.DriverManagerDataSource">
 
 <!-- 配置數(shù)據(jù)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，并將其生命周期納入Spring的管理 -->
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
 <property name="basePackage" value="mapper"></property>
 </bean>
 
 <!--4.配置事務(wù)管理器 -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 <property name="dataSource" ref="dataSource"></property>
 </bean>
 
 <!--5.開啟注解進(jìn)行事務(wù)管理  transaction-manager：引用上面定義的事務(wù)管理器-->
 <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

springMVC配置文件 :

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<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,并將其生命周期納入Spring管理 -->
    <context:component-scan base-package="controller">
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 注解驅(qū)動(dòng)，以使得訪問路徑與方法的匹配可以通過注解配置 -->
    <mvc:annotation-driven/>
    <!-- 靜態(tài)頁面，如html,css,js,images可以訪問 -->
    <mvc:default-servlet-handler />
    
    <!-- 視圖定位 -->
  <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：

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<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的配置文件-->
 <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(fā)servlet -->
 <servlet>
 <servlet-name>mvc-dispatcher</servlet-name>
 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 <!-- spring mvc的配置文件 -->
 <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(duì)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文件也要放在mapper層）

ShopMapping.java:

其中@Param注解 是為了和xml中的查詢參數(shù)進(jìn)行綁定

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

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<!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(shí)在寫登陸的時(shí)候用了int類型，在想登陸也只要在數(shù)據(jù)庫中查詢表單輸入的數(shù)據(jù)就行了，在mapper層的xml的文件中也寫了 select count(*) 查詢個(gè)數(shù)，  但是結(jié)果并不好，因?yàn)槲乙龅倪€有設(shè)置session。

package service;
 
import pojo.UserInfo;
 
public interface ShopService {
 //用戶注冊(cè)
 void regist(String name,String email,String password);
 //用戶登錄
 UserInfo login(String email,String password);
 //驗(yàn)證
 int findUser(String email); 
}

service實(shí)現(xiàn)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 email, String password) {
  sm.register(name, email, 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 email, String password) {
 int findUser = ss.findUser(email);
 
 if (findUser == 0) {
  ss.regist(name, email, password);
  // System.out.println("可以注冊(cè)");
  return "login";
 } else {
  // System.out.println("注冊(cè)失敗");
  return "register";
 }
 }
 
 @RequestMapping(value = "loginUser", method = RequestMethod.POST)
 public String loginUser(UserInfo user, HttpSession session) {
 // 調(diào)用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(dāng)中，關(guān)于注冊(cè)的格式要求還需要自行搜索一下，主要講一下的是登陸。在登陸的這個(gè)方法中傳遞了兩個(gè)形式參數(shù)，UserInfo是實(shí)體類，HttpSssion是設(shè)置session的關(guān)鍵，后面通過session.setAttribute()設(shè)置session，這也是在上文中提到的需要session的部分。在后來的注銷中可以使用session.invalidate。

看完這篇關(guān)于SSM框架下如何實(shí)現(xiàn)登錄注冊(cè)的文章，如果覺得文章內(nèi)容寫得不錯(cuò)的話，可以把它分享出去給更多人看到。

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