spring boot example dao

whatsmars-spring-boot/pom.xml

@@ -20,6 +20,16 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.mybatis.spring.boot</groupId>
+            <artifactId>mybatis-spring-boot-starter</artifactId>
+            <version>1.1.1</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-dbcp</groupId>
+            <artifactId>commons-dbcp</artifactId>
+            <version>1.4</version>
+        </dependency>
     </dependencies>
 
     <build>

whatsmars-spring-boot/src/main/java/com/itlong/whatsmars/spring/boot/DataSourceConfiguration.java

+package com.itlong.whatsmars.spring.boot;
+
+import org.apache.commons.dbcp.BasicDataSource;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+
+/**
+ * Created by Administrator on 2017/3/27.
+ */
+@Configuration
+//这个注解导入刚才增加的jdbc配置文件
+@PropertySource("classpath:prop.properties")
+public class DataSourceConfiguration {
+    @Value("${jdbc.driver}")
+    private String driver;
+    @Value("${jdbc.url}")
+    private String url;
+    @Value("${jdbc.username}")
+    private String username;
+    @Value("${jdbc.password}")
+    private String password;
+    @Value("${jdbc.maxActive}")
+    private int maxActive;
+    @Value("${jdbc.maxIdel}")
+    private int maxIdel;
+    @Value("${jdbc.maxWait}")
+    private long maxWait;
+
+
+    @Bean
+    public BasicDataSource dataSource(){
+        BasicDataSource dataSource = new BasicDataSource();
+        dataSource.setDriverClassName(driver);
+        dataSource.setUrl(url);
+        dataSource.setUsername(username);
+        dataSource.setPassword(password);
+        dataSource.setMaxActive(maxActive);
+        dataSource.setMaxIdle(maxIdel);
+        dataSource.setMaxWait(maxWait);
+        dataSource.setValidationQuery("SELECT 1");
+        dataSource.setTestOnBorrow(true);
+        return dataSource;
+    }
+}

whatsmars-spring-boot/src/main/java/com/itlong/whatsmars/spring/boot/MapperScanner.java

+package com.itlong.whatsmars.spring.boot;
+
+import org.mybatis.spring.mapper.MapperScannerConfigurer;
+import org.springframework.boot.autoconfigure.AutoConfigureAfter;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Created by Administrator on 2017/3/27.
+ */
+@Configuration
+// 因为这个对象的扫描，需要在MyBatisConfig的后面注入，所以加上下面的注解
+@AutoConfigureAfter(MybatisConfig.class)
+public class MapperScanner {
+    @Bean
+    public MapperScannerConfigurer mapperScannerConfigurer() {
+        MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
+        //获取之前注入的beanName为sqlSessionFactory的对象
+        mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactory");
+        //指定xml配置文件的路径
+        mapperScannerConfigurer.setBasePackage("com.framework.msg.mapper");
+        return mapperScannerConfigurer;
+    }
+}

whatsmars-spring-boot/src/main/java/com/itlong/whatsmars/spring/boot/MybatisConfig.java

+package com.itlong.whatsmars.spring.boot;
+
+import org.apache.ibatis.session.SqlSessionFactory;
+import org.mybatis.spring.SqlSessionFactoryBean;
+import org.mybatis.spring.SqlSessionTemplate;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.jdbc.datasource.DataSourceTransactionManager;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+import org.springframework.transaction.annotation.TransactionManagementConfigurer;
+
+import javax.sql.DataSource;
+
+/**
+ * Created by Administrator on 2017/3/27.
+ */
+@Configuration
+//加上这个注解，使得支持事务
+@EnableTransactionManagement
+public class MybatisConfig implements TransactionManagementConfigurer {
+    @Autowired
+    private DataSource dataSource;
+
+    @Override
+    public PlatformTransactionManager annotationDrivenTransactionManager() {
+        return new DataSourceTransactionManager(dataSource);
+    }
+
+    @Bean(name = "sqlSessionFactory")
+    public SqlSessionFactory sqlSessionFactoryBean() {
+        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
+        bean.setDataSource(dataSource);
+
+        try {
+            return bean.getObject();
+        } catch (Exception e) {
+            e.printStackTrace();
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Bean
+    public SqlSessionTemplate sqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {
+        return new SqlSessionTemplate(sqlSessionFactory);
+    }
+}

whatsmars-spring-boot/src/main/java/com/itlong/whatsmars/spring/boot/TestDao.java

+package com.itlong.whatsmars.spring.boot;
+
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.Map;
+
+/**
+ * Created by Administrator on 2017/3/27.
+ */
+@Mapper
+public interface TestDao {
+
+    @Select("select * from wx_userinfo;")
+    public Map<String,Object> find();
+
+    @Insert("insert into wx_userinfo(openid,status,nickname,sex,city,province,country,headimgurl,subscribe_time) "+
+            "values(#{id},1,'nick',1,'city','provi','contr','img',now())")
+    public int insert(@Param("id")int id);
+}

whatsmars-spring-boot/src/main/resources/prop.properties

+#jdbc
+jdbc.driver=com.mysql.jdbc.Driver
+jdbc.url=jdbc:mysql://192.168.137.2:3306/weichat?useUnicode=true&characterEncoding=utf8
+jdbc.username=root
+jdbc.password=123456
+jdbc.maxActive=2335
+jdbc.maxIdel=120
+jdbc.maxWait=100
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