Spring，Spring MVC，MongoDB实现登录注册

Spring，Spring MVC，MongoDB实现登录注册

工程目录：

Spring配置文件：

<beans xmlns="http://www.springframework.org/schema/beans"              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"              xmlns:context="http://www.springframework.org/schema/context"              xmlns:mongo="http://www.springframework.org/schema/data/mongo"              xsi:schemaLocation="http://www.springframework.org/schema/context               http://www.springframework.org/schema/context/spring-context-3.0.xsd               http://www.springframework.org/schema/data/mongo               http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd               http://www.springframework.org/schema/beans               http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">           <!-- 开启自动注入，进行包扫描 -->      <context:component-scan base-package="com" />        <mongo:mongo host="127.0.0.1" port="27017"/>              <!-- 配置MongoTemplate-->       <bean id="mongoTemplate" class="org.springframework.data.document.mongodb.MongoTemplate">             <constructor-arg ref="mongo"/>          <!-- 指定数据库名字-->           <constructor-arg name="databaseName" value="data1"/>           </bean>                <!-- 映射转换器，扫描back-package目录下的文件，根据注释，把它们作为mongodb的一个collection的映射 -->          <mongo:mapping-converter base-package="com.model" />               <!--普通注入-->       <bean id="userDaoImpl" class="com.userdaoimpl.UserDaoImpl">             <property name="mongoTemplate" ref="mongoTemplate"></property>         </bean>                <context:annotation-config />             <beanclass="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" /><!-- 配置视图解析器，将ModelAndView及字符串解析为具体的页面 --><bean id="viewResolver"class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/" /><property name="suffix" value=".jsp" /></bean></beans>

Web.xml:

<?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>     <servlet>  <servlet-name>spring</servlet-name>  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  <init-param>  <param-name>contextConfigLocation</param-name>  <param-value>classpath:applicationContext.xml</param-value>  </init-param>  </servlet>  <servlet-mapping>  <servlet-name>spring</servlet-name>  <url-pattern>/</url-pattern>  </servlet-mapping>  <!-- 统一字符编码 -->  <filter>  <filter-name>encoding</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>encoding</filter-name>  <url-pattern>*.do</url-pattern>  </filter-mapping></web-app>

Model层：

package com.model;import org.springframework.data.annotation.Id;import org.springframework.data.document.mongodb.mapping.Document;@Document(collection = "p3")  public class User {@IdString name;String password;public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}}

UserDao:

package com.userdao;import com.model.User;public interface UserDao {public void insert(User user);public boolean find(String name,String password);public void save(User user);}

UserDaoImpl:

package com.userdaoimpl;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.document.mongodb.MongoTemplate;import org.springframework.data.document.mongodb.query.Criteria;import org.springframework.data.document.mongodb.query.Query;import com.model.User;import com.userdao.UserDao;public class UserDaoImpl implements UserDao{@AutowiredMongoTemplate mongoTemplate;@Overridepublic void insert(User user) {getMongoTemplate().insert(user);}@Overridepublic boolean find(String name, String password) {Criteria criteria=Criteria.where("name").is(name).and("password").in(password);User user = getMongoTemplate().findOne(new Query(criteria), User.class);if (user==null) {return false;}return true;}@Overridepublic void save(User user) {getMongoTemplate().save(user);}public MongoTemplate getMongoTemplate() {return mongoTemplate;}public void setMongoTemplate(MongoTemplate mongoTemplate) {this.mongoTemplate = mongoTemplate;}}

LoginController:

package com.controller;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 com.userdaoimpl.UserDaoImpl;@Controllerpublic class LoginController {@AutowiredUserDaoImpl userDaoImpl;@RequestMapping("/login")public String login(String name,String password,Model model) {boolean rs = userDaoImpl.find(name, password);if (rs==true) {return "index";}return "erro";}public UserDaoImpl getUserDaoImpl() {return userDaoImpl;}public void setUserDaoImpl(UserDaoImpl userDaoImpl) {this.userDaoImpl = userDaoImpl;}}

RegisterController:

package com.controller;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 com.model.User;import com.userdaoimpl.UserDaoImpl;@Controllerpublic class RegisterController {@AutowiredUserDaoImpl userDaoImpl;@RequestMapping("/register")public String register(String name,String password,Model model) {User user = new User();user.setName(name);user.setPassword(password);userDaoImpl.save(user);return "login";}public UserDaoImpl getUserDaoImpl() {return userDaoImpl;}public void setUserDaoImpl(UserDaoImpl userDaoImpl) {this.userDaoImpl = userDaoImpl;}}