update codes

src/main/java/com/gmei/data/dqmp/pool/JdbcConnectPool.java

 package com.gmei.data.dqmp.pool;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.SQLException;
-import java.util.LinkedList;
 import java.util.Properties;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 public class JdbcConnectPool {
-
-	private static final Logger logger = LoggerFactory.getLogger(JdbcConnectPool.class);
 	private static Properties prop;
 	private static int requestCount = 0;
-	private static LinkedList<Connection> connList = new LinkedList<Connection>();
-
+	private static final Logger logger = LoggerFactory.getLogger(JdbcConnectPool.class);
 	static {
 		prop = getProperties("jdbc.properties");
 		try {
@@ -29,17 +25,8 @@ public class JdbcConnectPool {
 	}
 
 	public static Connection getConnection() {
-		Connection connection = null;
-		if (connList.size() > 0) {
-			connection = connList.getFirst();
-			connList.removeFirst();
-		} else{
-			connList.addLast(createConnect());
-			connection = getConnection();
-		}
 		logger.info("requestCount : {}",++requestCount);
-		logger.info("connList size : {}",connList.size());
-		return connection;
+		return createConnect();
 	}
 
 	/**
@@ -62,11 +49,14 @@ public class JdbcConnectPool {
 
 	/**
 	 * 释放连接
-	 * 
-	 * @param connection
 	 */
-	public static void releaseConnection(Connection connection) {
-		connList.addLast(connection);
+	public static void releaseConnection(Connection conn) {
+		try{
+			conn.close();
+		}catch (Exception e){
+			conn = null;
+			e.printStackTrace();
+		}
 	}
 
 	/**

src/main/java/com/gmei/data/dqmp/pool/JdbcConnectPoolBak.java → src/main/java/com/gmei/data/dqmp/pool/JdbcConnectPoolBak01.java

@@ -12,9 +12,9 @@ import java.sql.SQLException;
 import java.util.LinkedList;
 import java.util.Properties;
 
-public class JdbcConnectPoolBak {
+public class JdbcConnectPoolBak01 {
 
-	private static final Logger logger = LoggerFactory.getLogger(JdbcConnectPoolBak.class);
+	private static final Logger logger = LoggerFactory.getLogger(JdbcConnectPoolBak01.class);
 	private static Properties prop;
 	private static int requestCount = 0;
 	private static LinkedList<Connection> connList = new LinkedList<Connection>();
@@ -104,7 +104,7 @@ public class JdbcConnectPoolBak {
 	private static Properties getProperties(String path) {
 		Properties properties = new Properties();
 		try {
-			InputStream inputStream = JdbcConnectPoolBak.class.getClassLoader().getResourceAsStream(path);
+			InputStream inputStream = JdbcConnectPoolBak01.class.getClassLoader().getResourceAsStream(path);
 			properties.load(inputStream);
 			inputStream.close();
 		} catch (FileNotFoundException e) {

src/main/java/com/gmei/data/dqmp/pool/JdbcConnectPoolBak02.java

+package com.gmei.data.dqmp.pool;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.util.LinkedList;
+import java.util.Properties;
+
+public class JdbcConnectPoolBak02 {
+
+	private static final Logger logger = LoggerFactory.getLogger(JdbcConnectPoolBak02.class);
+	private static Properties prop;
+	private static int requestCount = 0;
+	private static LinkedList<Connection> connList = new LinkedList<Connection>();
+
+	static {
+		prop = getProperties("jdbc.properties");
+		try {
+			Class.forName(prop.getProperty("driverClassName"));
+		} catch (ClassNotFoundException e) {
+			e.printStackTrace();
+		}
+	}
+
+	public static Connection getConnection() {
+		Connection connection = null;
+		if (connList.size() > 0) {
+			connection = connList.getFirst();
+			connList.removeFirst();
+		} else{
+			connList.addLast(createConnect());
+			connection = getConnection();
+		}
+		logger.info("requestCount : {}",++requestCount);
+		logger.info("connList size : {}",connList.size());
+		return connection;
+	}
+
+	/**
+	 * 创建连接
+	 * 
+	 * @return
+	 */
+	private static Connection createConnect() {
+		Connection conn = null;
+		try {
+			conn = DriverManager.getConnection(
+					prop.getProperty("url"),
+					prop.getProperty("username"),
+					prop.getProperty("password"));
+		} catch (SQLException e) {
+			e.printStackTrace();
+		}
+		return conn;
+	}
+
+	/**
+	 * 释放连接
+	 * 
+	 * @param connection
+	 */
+	public static void releaseConnection(Connection connection) {
+		connList.addLast(connection);
+	}
+
+	/**
+	 * 获取属性文件对象
+	 * 
+	 * @param path
+	 * @return
+	 */
+	private static Properties getProperties(String path) {
+		Properties properties = new Properties();
+		try {
+			InputStream inputStream = JdbcConnectPoolBak02.class.getClassLoader().getResourceAsStream(path);
+			properties.load(inputStream);
+			inputStream.close();
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		return properties;
+	}
+}