Mybatis基于SqlSession实现CRUD

之前我们讲的基于XML还是接口注解配置都是使用接口实现CRUD，本文我们将要讲解通过splsession来实现CRUD，这种方法比较灵活。

基本配置

  <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource" />
         <property name="mapperLocations" value="classpath:mapping/*.xml"></property>
         <!-- 分页插件 -->
         <property name="plugins">
             <array>
                 <bean class="com.github.pagehelper.PageHelper">
                     <property name="properties">
                         <value>
                             dialect=mysql
                         </value>
                     </property>
                 </bean>
             </array>
         </property>
     </bean>
 
     <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
         <constructor-arg index="0" ref="sqlSessionFactory" />
     </bean>

Mapper实现

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="sysUserMapper">
     <select id="SelectOne" parameterType="java.util.HashMap" resultType="java.util.HashMap">
     select * from user_ where id = #{id,jdbcType=VARCHAR} limit 0,20
   </select>
     <select id="SelectProc" parameterType="java.util.HashMap" resultType="java.util.HashMap" >
         {call get_user(#{id,jdbcType=VARCHAR})}
   </select>
     <select id="SelectList" parameterType="java.util.HashMap" resultType="java.util.HashMap" >
         select * from user_
         <where>
             <if test="male_ != null and male_!=''">
                 AND  male_ = #{male_,jdbcType=VARCHAR}
             </if>
         </where>
         limit 0,20
     </select>
     <insert id="insert" parameterType="java.util.HashMap">
         insert into user_test(id, name) values(#{id}, #{name})
     </insert>
 </mapper>

数据实现

首先我们 添加SqlSession 属性注入

 @Autowired
     private  SqlSession sqlSession;

然后我们实现具体的CRUD操作

 public Map<String, String> SelectOne(String method,Object Para)
     {
         return sqlSession.selectOne(method, Para);
     }
 
     public List<Map<String, String>> SelectList(String method,Object Para)
     {
         return sqlSession.selectList(method, Para);
     }
 
     public List<Map<String, String>> SelectProc(String method,Object Para)
     {
         return sqlSession.selectList(method, Para);
     }
 
     public void  insert(String method,Object Para)
     {
         if(Para.getClass().getName().equals("java.util.ArrayList"))
         {
             ArrayList list = (ArrayList) Para;
             for (int i = 0; i < list.size(); i++) {
                 HashMap hm = (HashMap) list.get(i);
                 sqlSession.insert(method, hm);
             }
         }
         else
         {
              sqlSession.insert(method, Para);
         }
     }
 
     public void  update(String method,Object Para)
     {
         if(Para.getClass().getName().equals("java.util.ArrayList"))
         {
             ArrayList list = (ArrayList) Para;
             for (int i = 0; i < list.size(); i++) {
                 HashMap hm = (HashMap) list.get(i);
                 sqlSession.update(method, hm);
             }
         }
         else
         {
             sqlSession.update(method, Para);
         }
 
     }
 
     public void delete(String method,Object Para)
     {
         if(Para.getClass().getName().equals("java.util.ArrayList"))
         {
             ArrayList list = (ArrayList) Para;
             for (int i = 0; i < list.size(); i++) {
                 HashMap hm = (HashMap) list.get(i);
                 sqlSession.delete(method, hm);
             }
         }
         else
         {
             sqlSession.delete(method, Para);
         }
     }

路由中转操作

 public  Object doProess(String BsCode,String Operation, Object Para) {
         String method=BsCode.trim()+"."+Operation.trim();
        // try {
             switch (Operation) {
                 case "SelectOne":
                     return SelectOne(method, Para);
                 case "SelectList":
                     return SelectList(method, Para);
                 case "SelectProc":
                     return SelectProc(method, Para);
                 case "insert":
                      insert(method, Para);
                      return 1;
                 case "update":
                      update(method, Para);
                      return 1;
                 case "delete":
                      delete(method, Para);
                      return 1;
                 default:
                     return "无相关操作类型";
 
             }
        // }catch (Exception e)
        // {
            // return e.getMessage();
        // }
     }

数据验证测试

 @RunWith(SpringJUnit4ClassRunner.class)  //使用junit4进行测试
 @ContextConfiguration({"classpath:spring-base.xml"})
 public class commServiceImplTest {
 
     @Autowired
     private commService commservice;
 
     @Test
     public void selectOne() throws Exception {
         String bsCode="sysUserMapper";
         String Operation="SelectOne";
         Map<String, String> para=new HashMap<String, String>();
         para.put("id","fjx");
         Map<String, String> userinfo=(Map<String, String>) commservice.doProess(bsCode,Operation, para);
         System.out.print(userinfo);
     }
 
    @Test
     public void doProess2() throws Exception {
         String bsCode="sysUserMapper";
         String Operation="SelectProc";
         Map<String, String> para=new HashMap<String, String>();
         para.put("id","fjx");
         Object userinfo=commservice.doProess(bsCode,Operation,para);
         System.out.print(userinfo);
     }
 
     @Test
     public void doProess3() throws Exception {
         String bsCode="sysUserMapper";
         String Operation="SelectList";
         Map<String, String> para=new HashMap<String, String>();
         para.put("male_","1");
         Object users=commservice.doProess(bsCode,Operation,para);
         System.out.print(users);
     }
 
 }

GITHUB

github : https://github.com/nbfujx/Goku.WebService.Bus