读取WEB-INF目录下的ApplicationContext.xml获取Connection连接

1.获取配置文件路径。

public class CloudClient {
    /**
     * 
     */
    private static final long serialVersionUID = 5373577151116649741L;

    public static void main(String ags[]) {
        try {
            // 读取WEB-INF下的配置文件
            String path = CloudClient.class.getResource("/").getPath();
            System.out.println("路径1：" + path);// 路径1：/C:/GenesisTools2011/workspace/SAMS/SAMS/WEB-INF/classes/
            String pathA = path.replace("/classes", "");
            System.out.println("路径2：" + pathA);// 路径2：/C:/GenesisTools2011/workspace/SAMS/SAMS/WEB-INF/
            String pathB = pathA
                    + "/conf/applicationContext/applicationContext.xml";
            SpringContext.setApplicationContext(pathB);//加载配置文件
            Connection con=getConnection();//获取连接
            //...
            //CloudClient cc = new CloudClient();
            // cc.sendMessageToCloud();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } 
}

2、SpringContext加载配置文件

public static void setApplicationContext(String path) {
        ApplicationContext ac = new FileSystemXmlApplicationContext(path);
        springContext = ac;
    }

提供getBean方法

public static Object getBean(String key) {
        return springContext.getBean(key);
    }

3.传入dataSource数据源配置名称，获取connection连接。

ApplicationContext.xml

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
        <property name="url" value="jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=10.10.10.10)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=orcl)(SERVER=DEDICATED)))" />
        <property name="username" value="sams" />
        <property name="password" value="abcd1234" />

 

    public static Connection getConnection() {
        if (dataSource == null) {
            dataSource = (DataSource) SpringContext.getBean("dataSource");
        }
        return DataSourceUtils.getConnection(dataSource);
    }