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Spring，Spring MVC，MongoDB实现登录注册

Spring配置文件：

Web.xml:

   
     
    	  
        
     
      login.jsp
       
         
      	
     
      spring
       	
     
      org.springframework.web.servlet.DispatcherServlet
       	
       		
      
       contextConfigLocation
        		
      
       classpath:applicationContext.xml
        	
       
      
      	
     
      spring
       	
     
      /
       
      
      
      	
     
      encoding
       	
     
      org.springframework.web.filter.CharacterEncodingFilter
       	
       		
      
       encoding
        		
      
       UTF-8
        	
       
        
      	
     
      encoding
       	
     
      *.do
       
    
   

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 {	@Id	String 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{		@Autowired	MongoTemplate mongoTemplate;		@Override	public void insert(User user) {		getMongoTemplate().insert(user);			}				@Override	public 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;	}		@Override	public 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 {	@Autowired	UserDaoImpl 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 {	@Autowired		UserDaoImpl 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;	}			}