jdbc template操作测试

springMvc/pom.xml

@@ -47,7 +47,10 @@
       </plugin>
     </plugins>
   </build>
-
+  <properties>
+    <maven.compiler.source>8</maven.compiler.source>
+    <maven.compiler.target>8</maven.compiler.target>
+  </properties>
   <dependencies>
     <!--dependency>
       <groupId>org.example</groupId>

springMvc/src/main/java/com/controller/JdbcTemplateController.java

@@ -0,0 +1,59 @@
+package com.controller;
+
+import com.pojo.entity.AEntity;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.jdbc.core.BeanPropertyRowMapper;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Controller
+@RequestMapping("jdbc")
+public class JdbcTemplateController {
+    @Autowired
+    JdbcTemplate jdbcTemplate;
+    @RequestMapping("jdbc1")
+    @ResponseBody
+    public String jdbc1() {
+        return String.valueOf(jdbcTemplate.update("insert into `wb_tbl_a`(company_id,status) values (?,?)", 100, 100));
+    }
+    /**
+     * jdbc查询所有
+     */
+    @RequestMapping("queryAll")
+    @ResponseBody
+    public Map jdbc2() {
+        HashMap<String, String> stringStringHashMap = new HashMap<>();
+        stringStringHashMap.put("111","zxy");
+        List<AEntity> query = jdbcTemplate.query("select * from wb_tbl_a",
+                new BeanPropertyRowMapper<AEntity>(AEntity.class));
+        return stringStringHashMap;
+    }
+    /**
+     * 查询单个
+     *
+     */
+    @RequestMapping("queryOne")
+    @ResponseBody
+    public AEntity queryOne() {
+       return jdbcTemplate.queryForObject("select * from wb_tbl_a where id =?",
+                new BeanPropertyRowMapper<AEntity>(AEntity.class),
+                "10"
+        );
+    }
+    /**
+     * 聚合查询 查询总数
+     */
+    @RequestMapping("queryCount")
+    @ResponseBody
+    public Long queryCount() {
+        return jdbcTemplate.queryForObject("select count(*) from wb_tbl_a ",
+                Long.class
+        );
+    }
+}

springMvc/src/main/java/com/pojo/entity/AEntity.java

@@ -0,0 +1,14 @@
+package com.pojo.entity;
+
+import lombok.Data;
+
+import java.util.Date;
+
+@Data
+public class AEntity {
+    private Integer id;
+    private Integer companyId;
+    private Integer status;
+    private Date utime;
+    private Date ctime;
+}

springMvc/src/main/java/com/service/impl/UserServiceImpl.java

@@ -13,22 +13,21 @@ import java.beans.PropertyVetoException;
 public class UserServiceImpl implements UserService {
     @Autowired
     private UserDao userDao;
-    private JdbcTemplate jdbcTemplate;
     @Override
     public void saveUser() {
-        jdbcTemplate = new JdbcTemplate();
-        ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();
-        try {
-            comboPooledDataSource.setDriverClass("com.mysql.cj.jdbc.Driver");
-            comboPooledDataSource.setJdbcUrl("jdbc:mysql://47.110.156.18:3306/sczn_eshop_test?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai");
-            comboPooledDataSource.setUser("sczn");
-            comboPooledDataSource.setPassword("sczn159357");
-            this.jdbcTemplate.setDataSource(comboPooledDataSource);
-            int row = this.jdbcTemplate.update("insert into `wb_tbl_a`(company_id,status) " +
-                    "values (?,?)", 100, 100);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
+//        jdbcTemplate = new JdbcTemplate();
+//        ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();
+//        try {
+//            comboPooledDataSource.setDriverClass("com.mysql.cj.jdbc.Driver");
+//            comboPooledDataSource.setJdbcUrl("jdbc:mysql://47.110.156.18:3306/sczn_eshop_test?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai");
+//            comboPooledDataSource.setUser("sczn");
+//            comboPooledDataSource.setPassword("sczn159357");
+//            this.jdbcTemplate.setDataSource(comboPooledDataSource);
+//            int row = this.jdbcTemplate.update("insert into `wb_tbl_a`(company_id,status) " +
+//                    "values (?,?)", 100, 100);
+//        } catch (Exception e) {
+//            e.printStackTrace();
+//        }
         userDao.save();
     }
 }

springMvc/src/main/resources/context.xml

@@ -10,14 +10,17 @@
     <!--    <bean id="userService1" class="com.service.impl.UserServiceImpl">-->
     <!--&lt;!&ndash;        <constructor-arg name="userDao" ref="UserDao"></constructor-arg>&ndash;&gt;-->
     <!--    </bean>-->
-    <!--    加载外部 properties文件-->
-    <!--    <context:property-placeholder location="jdbc.properties"></context:property-placeholder>-->
-    <!--    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">-->
-    <!--        <property name="driverClassName" value="${jdbc.driver}"></property>-->
-    <!--        <property name="url" value="${jdbc.url}"></property>-->
-    <!--        <property name="username" value="${jdbc.username}"></property>-->
-    <!--        <property name="password" value="${jdbc.password}"></property>-->
-    <!--    </bean>-->
+<!--        加载外部 properties文件-->
+        <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
+        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
+            <property name="driverClassName" value="${jdbc.driver}"></property>
+            <property name="url" value="${jdbc.url}"></property>
+            <property name="username" value="${jdbc.username}"></property>
+            <property name="password" value="${jdbc.password}"></property>
+        </bean>
+        <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
+            <property name="dataSource" ref="dataSource"></property>
+        </bean>
     <!--    组件扫描-->
     <context:component-scan base-package="com"></context:component-scan>
     <context:component-scan base-package="testCom"></context:component-scan>

springMvc/src/main/resources/jdbc.properties

@@ -0,0 +1,4 @@
+jdbc.driver=com.mysql.cj.jdbc.Driver
+jdbc.url=jdbc:mysql://47.110.156.18:3306/sczn_eshop_test?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
+jdbc.username=sczn
+jdbc.password=sczn159357

springMvc/src/main/webapp/WEB-INF/applicationContext.xml

@@ -11,7 +11,7 @@
   <!--&lt;!&ndash;        <constructor-arg name="userDao" ref="UserDao"></constructor-arg>&ndash;&gt;-->
   <!--    </bean>-->
   <!--    加载外部 properties文件-->
-  <!--    <context:property-placeholder location="jdbc.properties"></context:property-placeholder>-->
+<!--      <context:property-placeholder location="jdbc.properties"></context:property-placeholder>-->
   <!--    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">-->
   <!--        <property name="driverClassName" value="${jdbc.driver}"></property>-->
   <!--        <property name="url" value="${jdbc.url}"></property>-->