Spring MVC 链接 PostgreSQL
这一篇来链接数据库PostgreSQL
1、在pom.xml添加几个依赖
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.3-1102-jdbc4</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
<version>8.0.9</version>
</dependency>
2、创建jdbc.properties配置文件
ticket.database.driver = org.postgresql.Driver
ticket.database.url = jdbc:postgresql://***.dev.cn6.qunar.com:5433/check_result
ticket.database.username = menpiao_dev
ticket.database.password = ***-***-***
3、在dispatcher-servlet.xml里添加数据源
<bean id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource"
destroy-method="close" autowire="no">
<property name="fairQueue" value="false" />
<property name="minIdle" value="1" />
<property name="maxIdle" value="5" />
<property name="maxActive" value="5" />
<property name="initialSize" value="1" />
<property name="testOnBorrow" value="true" />
<property name="validationQuery" value="select 1" />
<property name="validationInterval" value="500000" /><!-- 5min -->
<property name="removeAbandoned" value="true" />
<property name="removeAbandonedTimeout" value="30" />
<property name="driverClassName" value="${ticket.database.driver}" />
<property name="url" value="${ticket.database.url}" />
<property name="username" value="${ticket.database.username}" />
<property name="password" value="${ticket.database.password}" />
</bean>
4、创建测试Service类
package com.qunar.check.Service;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.sql.DataSource;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class TestService {
public void test() {
try {
ApplicationContext ctx = new ClassPathXmlApplicationContext("dispatcher-servlet.xml");
DataSource ds = ctx.getBean("dataSource", DataSource.class);
Connection conn = ds.getConnection();
Statement st = conn.createStatement();
ResultSet rt = st.executeQuery("select * from datasource");
while (rt.next()) {
String test1 = rt.getString(2);
System.out.println(test1);
}
rt.close();
st.close();
conn.close();
} catch (Exception e) {
System.out.println(e);
} finally {
}
}
public static void main(String args[]){
TestService t = new TestService();
t.test();
}
}
5、测试：
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@ff7f824: defining beans [org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0,org.springframework.format.support.FormattingConversionServiceFactoryBean#0,org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter#0,org.springframework.web.servlet.handler.MappedInterceptor#0,org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,testController,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.web.servlet.view.InternalResourceViewResolver#0,dataSource]; root of factory hierarchy
一月 27, 2015 11:46:43 下午 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/index.do] onto handler [com.qunar.check.Controller.TestController@75be5b6]
test
下载地址：
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具体下载目录在 /2015年资料/2月/8日/Spring MVC 链接 PostgreSQL/
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PostgreSQL 的详细介绍：请点这里
PostgreSQL 的下载地址：请点这里