public class Card implements Serializable{

 private Integer id;
 private String code;
 //getter，setter

public class Person implements Serializable{

 private Integer id;
 private String name;
 private String sex;
 private Integer age;
 private Card card;
 //getter,setter

//PersonMapper.java
package org.fkit.mapper;

import org.fkit.domain.Person;

public interface PersonMapper {
    /**
     * @param id
     * @return Person
     */
    Person selectPersonById(Integer id);
}

//OneToOneTset.java
public class OneToOneTest {
    public static void main(String args[])throws Exception {
        SqlSession sqlSession = FKSqlSessionFactory.getSqlSession();
        Person person = sqlSession.selectOne("org.fkit.mapper.PersonMapper.selectPersonById", 1);
        System.out.println(person);
    }
}
//output:
Person{id=1, name='jack', sex='男', age=23, card=Card{id=1, code='432801198009191038'}}

//OneToOneTset.java

public class OneToOneTest {
    public static void main(String args[])throws Exception {
        InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        SqlSession session = sqlSessionFactory.openSession();
        PersonMapper personMapper = session.getMapper(PersonMapper.class);
        Person person = personMapper.selectPersonById(1);
        System.out.println(person);
    }
}

//output:
Person{id=1, name='jack', sex='男', age=23, card=Card{id=1, code='432801198009191038'}}

package org.fkit.controller;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.domain2.User;
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 org.springframework.web.bind.annotation.RequestParam;

import java.util.ArrayList;
import java.util.List;

@Controller
@RequestMapping("/user")
public class UserController {
    private static List<User> userList;

    public UserController() {
        super();
        userList = new ArrayList<User>();
    }

    private static Log logger = LogFactory.getLog(UserController.class);

    @RequestMapping(value = "/register", method = RequestMethod.GET)
    public String requireForm() {
        logger.info("register GET被调用");
        System.out.println("register GET被调用");

        return "registerForm";
    }

    @RequestMapping(value = "/register", method = RequestMethod.POST)
    public String register(
            @RequestParam("loginname") String loginname,
            @RequestParam("password") String password,
            @RequestParam("username") String username) {
        logger.info("register POST被调用");
        System.out.println("register POST被调用");
        User user = new User();
        user.setLoginname(loginname);
        user.setUsername(username);
        user.setPassword(password);

        userList.add(user);
        System.out.println(userList);
        return "loginForm";
    }

    @RequestMapping("/login")
    public String login(
            @RequestParam("loginname") String loginname,
            @RequestParam("password") String password,
            Model model){
        logger.info("登录名" + loginname + "  密码" + password);
        for (User user : userList) {
            if (user.getLoginname().equals(loginname) &&
                    user.getPassword().equals(password)) {
                model.addAttribute("user", user);
                return "welcome";
            }
        }
        return "loginForm";
    }
}

package org.fkit.controller;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class DataBindingController {
    private static final Log logger = LogFactory.getLog(DataBindingController.class);

    @RequestMapping(value = "/pathVariableTest/{userId}")
    public void pathVariableTest(@PathVariable Integer userId) {
        logger.info("通过@PathVariable获得的数据：" + userId);
    }

    @RequestMapping(value = "/requestHeaderTest")
    public void requestHeaderTest(
            @RequestHeader("User-Agent") String userAgent,
            @RequestHeader(value = "Accept") String[] accepts) {
        logger.info("通过@requestHeaderTest获得的数据:" + userAgent);
        for (String accept : accepts) {
            logger.info(accept);
        }
    }

    @RequestMapping(value = "/cookieValueTest")
    public void cookieValueTest(
            @CookieValue(value = "JSESSIONID", defaultValue = "") String sessionId) {
        logger.info("通过@CookieValue获得的数据：" + sessionId);

    }

    @RequestMapping(value = "/testWebsite")
    public String testWebsite(){
        return "index";
    }
}