上圖是查詢列表的接口，get方式

上圖是用戶注冊的接口，同樣是get，post方式也很簡單

開發工具：IntelliJ IDEA 2016.3.5

ORM框架：MyBatis

數據庫：MySql

服務器：tomcat7.0

公司使用的的orm框架是Hibernate，使用起來感覺比mybatis好用多了，畢竟經過了公司這么多項目的考驗，總比自己用mybatis寫的項目可靠，但以下分享的還是mybatis的代碼

注冊接口方法：

http://192.168.1.116:8080/register?username=111&password=222

@RequestMapping(value = "register", method = RequestMethod.GET)
?@ResponseBody
?public Map<String, Object> register(@RequestParam("username") String username, @RequestParam("password") String password) {
??out.println("welcome to register,username=" + username + ";password=" + password);
??Map<String, Object> map = new HashMap<>();
??ResultBean result = onRegister(username, password);
??out.println("result==>" + result);
??map.put("code", result.getCode());
??map.put("reason", result.getReason());
??map.put("success", result.isSuccess());
??return map;
?}

具體的注冊方法，獲取session基本和Hibernate差不多

private ResultBean onRegister(String username, String password) {
??ResultBean resultBean = new ResultBean();
??SqlSession session = null;
??try {
???session = sqlSessionFactory.openSession();
???LoginMapper loginMapper = session.getMapper(LoginMapper.class);
???Map<String, Object> map = new HashMap<>();
???map.put("name", username);
???map.put("password", password);
???LoginBean bean = new LoginBean();
???bean.setName(username);
???bean.setPassword(password);
???// 查詢用戶是否存在
???LoginBean userExist = loginMapper.findUserByName(map);
???if (userExist != null) {
????// 存在后無法注冊
????resultBean.setCode("001");
????resultBean.setSuccess(false);
????resultBean.setReason("用戶已存在");
???} else {
????loginMapper.addUser(bean);
????session.commit();// 重要，一定要commit，否則無法insert
????System.out.println("當前增加的用戶id為：" + bean.getId());
????resultBean.setCode("200");
????resultBean.setSuccess(true);
????resultBean.setReason("注冊成功");
???}
??} catch (Exception e) {
???e.printStackTrace();
???out.println("注冊異常==>" + e.getMessage());
???resultBean.setCode("001");
???resultBean.setSuccess(false);
???resultBean.setReason("注冊異常");
??} finally {
???session.close();
??}
??return resultBean;
?}

這個Mapper需要在配置文件中指定

public interface LoginMapper {
?public LoginBean findUserByName(Map<String,Object> map) throws Exception;
?public void addUser(LoginBean bean) throws Exception;
}

這是對應的LoginMapper.xml

xml version="1.0" encoding="UTF-8" ?>

??PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
??"http://mybatis.org/dtd/mybatis-3-config.dtd">
<mapper namespace="com.xm.travel.LoginMapper">
?<select id="loadRunList" parameterType="java.util.Map" resultType="com.xm.travel.RunBean">
??select * from run
?select>
?<select id="loginUser" parameterType="java.util.Map" resultType="com.xm.travel.LoginBean">
??select * from user where name = #{name} and password = #{password}
?select>
?<select id="findUserByName" parameterType="java.util.Map" resultType="com.xm.travel.LoginBean">
??select * from user where name = #{name}
?select>
?<insert id="addUser" useGeneratedKeys="true" keyProperty="id" >
??insert into user(id,name,password) values(#{id},#{name},#{password})
?insert>
mapper>

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