spring+druid+mybatis samples
This commit is contained in:
罗祥
384
spring/spring-jdbc/README.md
Normal file
384
spring/spring-jdbc/README.md
Normal file
@ -0,0 +1,384 @@
|
||||
# spring 整合 jdbc template（xml配置方式）
|
||||
|
||||
1、创建标准web maven工程，导入依赖
|
||||
|
||||
```xml
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project xmlns="http://maven.apache.org/POM/4.0.0"
|
||||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
<groupId>com.heibaiying</groupId>
|
||||
<artifactId>spring-jdbc</artifactId>
|
||||
<version>1.0-SNAPSHOT</version>
|
||||
<properties>
|
||||
<spring-base-version>5.1.3.RELEASE</spring-base-version>
|
||||
</properties>
|
||||
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-context</artifactId>
|
||||
<version>${spring-base-version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-beans</artifactId>
|
||||
<version>${spring-base-version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-core</artifactId>
|
||||
<version>${spring-base-version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-web</artifactId>
|
||||
<version>${spring-base-version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-webmvc</artifactId>
|
||||
<version>${spring-base-version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>javax.servlet</groupId>
|
||||
<artifactId>javax.servlet-api</artifactId>
|
||||
<version>4.0.1</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.projectlombok</groupId>
|
||||
<artifactId>lombok</artifactId>
|
||||
<version>1.18.4</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
<!--jdbc 相关依赖包-->
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-jdbc</artifactId>
|
||||
<version>${spring-base-version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>mysql</groupId>
|
||||
<artifactId>mysql-connector-java</artifactId>
|
||||
<version>8.0.13</version>
|
||||
</dependency>
|
||||
<!--单元测试相关依赖包-->
|
||||
<dependency>
|
||||
<groupId>junit</groupId>
|
||||
<artifactId>junit</artifactId>
|
||||
<version>4.12</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-test</artifactId>
|
||||
<version>${spring-base-version}</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.oracle</groupId>
|
||||
<artifactId>ojdbc6</artifactId>
|
||||
<version>11.2.0.3.0</version>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
|
||||
</project>
|
||||
```
|
||||
|
||||
2、在web.xml 进行如下配置
|
||||
|
||||
```xml
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
|
||||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
|
||||
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
|
||||
version="3.1">
|
||||
|
||||
<!--配置spring前端控制器-->
|
||||
<servlet>
|
||||
<servlet-name>springMvc</servlet-name>
|
||||
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
|
||||
<init-param>
|
||||
<param-name>contextConfigLocation</param-name>
|
||||
<param-value>classpath:springApplication.xml</param-value>
|
||||
</init-param>
|
||||
<load-on-startup>1</load-on-startup>
|
||||
</servlet>
|
||||
|
||||
<servlet-mapping>
|
||||
<servlet-name>springMvc</servlet-name>
|
||||
<url-pattern>/</url-pattern>
|
||||
</servlet-mapping>
|
||||
|
||||
</web-app>
|
||||
```
|
||||
|
||||
3、在resources文件夹下新建数据库配置文件jdbc.properties
|
||||
|
||||
```properties
|
||||
# mysql 数据库配置
|
||||
mysql.driverClassName=com.mysql.jdbc.Driver
|
||||
mysql.url=jdbc:mysql://localhost:3306/mysql
|
||||
mysql.username=root
|
||||
mysql.password=root
|
||||
|
||||
# oracle 数据库配置
|
||||
oracle.driverClassName=oracle.jdbc.driver.OracleDriver
|
||||
oracle.url=jdbc:oracle:thin:@//IP地址:端口号/数据库实例名
|
||||
oracle.username=用户名
|
||||
oracle.password=密码
|
||||
```
|
||||
|
||||
4、在resources文件夹下创建springApplication.xml 配置文件
|
||||
|
||||
```xml
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<beans xmlns="http://www.springframework.org/schema/beans"
|
||||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
|
||||
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
|
||||
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
|
||||
|
||||
<!-- 开启注解包扫描-->
|
||||
<context:component-scan base-package="com.heibaiying.*"/>
|
||||
|
||||
<!--指定配置文件的位置-->
|
||||
<context:property-placeholder location="classpath:jdbc.properties"/>
|
||||
|
||||
<!--配置数据源-->
|
||||
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
|
||||
<!--Mysql 配置-->
|
||||
<property name="driverClassName" value="${mysql.driverClassName}"/>
|
||||
<property name="url" value="${mysql.url}"/>
|
||||
<property name="username" value="${mysql.username}"/>
|
||||
<property name="password" value="${mysql.password}"/>
|
||||
<!--Oracle 配置-->
|
||||
<!--<property name="driverClassName" value="${oracle.driverClassName}"/>
|
||||
<property name="url" value="${oracle.url}"/>
|
||||
<property name="username" value="${oracle.username}"/>
|
||||
<property name="password" value="${oracle.password}"/>-->
|
||||
</bean>
|
||||
|
||||
<!--配置 jdbcTemplate -->
|
||||
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
|
||||
<!--引用上面的数据源-->
|
||||
<property name="dataSource" ref="dataSource"/>
|
||||
</bean>
|
||||
|
||||
<!--定义事务管理器-->
|
||||
<bean id="transactionManager"
|
||||
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
|
||||
<property name="dataSource" ref="dataSource"/>
|
||||
</bean>
|
||||
|
||||
<!-- 开启事务注解@Transactional支持 -->
|
||||
<tx:annotation-driven/>
|
||||
|
||||
</beans>
|
||||
```
|
||||
|
||||
5、新建查询接口及其实现类,这里我查询的表是mysql和oracle中的字典表
|
||||
|
||||
```java
|
||||
public interface MysqlDao {
|
||||
|
||||
List<Relation> get();
|
||||
}
|
||||
```
|
||||
|
||||
```java
|
||||
package com.heibaiying.dao;
|
||||
|
||||
import com.heibaiying.bean.Relation;
|
||||
import com.heibaiying.dao.impl.MysqlDao;
|
||||
import org.springframework.beans.factory.annotation.Autowired;
|
||||
import org.springframework.jdbc.core.JdbcTemplate;
|
||||
import org.springframework.jdbc.core.RowMapper;
|
||||
import org.springframework.stereotype.Repository;
|
||||
|
||||
import java.sql.ResultSet;
|
||||
import java.sql.SQLException;
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* @author : heibaiying
|
||||
* @description :
|
||||
*/
|
||||
|
||||
@Repository
|
||||
public class MysqlDaoImpl implements MysqlDao {
|
||||
|
||||
@Autowired
|
||||
private JdbcTemplate jdbcTemplate;
|
||||
|
||||
/**
|
||||
* 更多JDBC 的使用可以参考官方文档
|
||||
* @see <a href="https://docs.spring.io/spring/docs/5.1.3.RELEASE/spring-framework-reference/data-access.html#jdbc-JdbcTemplate">JdbcTemplate</a>
|
||||
*/
|
||||
public List<Relation> get() {
|
||||
List<Relation> relations = jdbcTemplate.query("select * from help_keyword where help_keyword_id = ? ", new Object[]{691},
|
||||
new RowMapper<Relation>() {
|
||||
public Relation mapRow(ResultSet rs, int rowNum) throws SQLException {
|
||||
Relation relation = new Relation();
|
||||
relation.setId(rs.getString("help_keyword_id"));
|
||||
relation.setName(rs.getString("name"));
|
||||
return relation;
|
||||
}
|
||||
|
||||
});
|
||||
return relations;
|
||||
}
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
```mysql
|
||||
package com.heibaiying.dao.impl;
|
||||
|
||||
import com.heibaiying.bean.Flow;
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* @author : heibaiying
|
||||
* @description :
|
||||
*/
|
||||
public interface OracleDao {
|
||||
|
||||
List<Flow> get();
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
```java
|
||||
package com.heibaiying.dao;
|
||||
|
||||
import com.heibaiying.bean.Flow;
|
||||
import com.heibaiying.dao.impl.OracleDao;
|
||||
import org.springframework.beans.factory.annotation.Autowired;
|
||||
import org.springframework.jdbc.core.JdbcTemplate;
|
||||
import org.springframework.jdbc.core.RowMapper;
|
||||
import org.springframework.stereotype.Repository;
|
||||
|
||||
import java.sql.ResultSet;
|
||||
import java.sql.SQLException;
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* @author : heibaiying
|
||||
* @description :
|
||||
*/
|
||||
|
||||
@Repository
|
||||
public class OracleDaoImpl implements OracleDao {
|
||||
|
||||
@Autowired
|
||||
private JdbcTemplate jdbcTemplate;
|
||||
|
||||
/**
|
||||
* 更多JDBC 的使用可以参考官方文档
|
||||
* @see <a href="https://docs.spring.io/spring/docs/5.1.3.RELEASE/spring-framework-reference/data-access.html#jdbc-JdbcTemplate">JdbcTemplate</a>
|
||||
*/
|
||||
public List<Flow> get() {
|
||||
List<Flow> flows = jdbcTemplate.query("select * from APEX_030200.WWV_FLOW_CALS where ID = ? ", new Object[]{217584603977429772L},
|
||||
new RowMapper<Flow>() {
|
||||
public Flow mapRow(ResultSet rs, int rowNum) throws SQLException {
|
||||
Flow flow = new Flow();
|
||||
flow.setId(rs.getLong("ID"));
|
||||
flow.setFlowId(rs.getLong("FLOW_ID"));
|
||||
flow.setPlugId(rs.getLong("PLUG_ID"));
|
||||
return flow;
|
||||
}
|
||||
|
||||
});
|
||||
return flows;
|
||||
}
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
6.新建测试类进行测试
|
||||
|
||||
```java
|
||||
package com.heibaiying.dao;
|
||||
|
||||
import com.heibaiying.bean.Relation;
|
||||
import com.heibaiying.dao.impl.MysqlDao;
|
||||
import org.junit.Test;
|
||||
import org.junit.runner.RunWith;
|
||||
import org.springframework.beans.factory.annotation.Autowired;
|
||||
import org.springframework.test.context.ContextConfiguration;
|
||||
import org.springframework.test.context.junit4.SpringRunner;
|
||||
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* @author : heibaiying
|
||||
* @description :
|
||||
*/
|
||||
|
||||
@RunWith(SpringRunner.class)
|
||||
@ContextConfiguration({"classpath:springApplication.xml"})
|
||||
public class MysqlDaoTest {
|
||||
|
||||
@Autowired
|
||||
private MysqlDao mysqlDao;
|
||||
|
||||
@Test
|
||||
public void get() {
|
||||
List<Relation> relations = mysqlDao.get();
|
||||
if (relations != null) {
|
||||
for (Relation relation : relations) {
|
||||
System.out.println(relation.getId() + " " + relation.getName());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
```java
|
||||
package com.heibaiying.dao;
|
||||
|
||||
import com.heibaiying.bean.Flow;
|
||||
import com.heibaiying.dao.impl.OracleDao;
|
||||
import org.junit.Test;
|
||||
import org.junit.runner.RunWith;
|
||||
import org.springframework.beans.factory.annotation.Autowired;
|
||||
import org.springframework.beans.factory.annotation.Qualifier;
|
||||
import org.springframework.test.context.ContextConfiguration;
|
||||
import org.springframework.test.context.junit4.SpringRunner;
|
||||
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* @author : heibaiying
|
||||
* @description :
|
||||
*/
|
||||
|
||||
@RunWith(SpringRunner.class)
|
||||
@ContextConfiguration({"classpath:springApplication.xml"})
|
||||
public class OracleDaoTest {
|
||||
|
||||
/*注入接口时: 如果接口有多个实现类 可以用这个注解指定具体的实现类*/
|
||||
@Qualifier("oracleDaoImpl")
|
||||
@Autowired
|
||||
private OracleDao oracleDao;
|
||||
|
||||
@Test
|
||||
public void get() {
|
||||
List<Flow> flows = oracleDao.get();
|
||||
if (flows != null) {
|
||||
for (Flow flow : flows) {
|
||||
System.out.println(flow.getId() + " " + flow.getPlugId());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
Reference in New Issue
Block a user