修改 getStatus 方法。

 package com.sitech.ismp.coll;
 
+import org.apache.log4j.Logger;
+
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.PreparedStatement;
@@ -10,8 +12,6 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Vector;
 
-import org.apache.log4j.Logger;
-
 public class SQLTarget extends CollBase {
 	Logger logger = Logger.getLogger(SQLTarget.class);
 	String ObjectIP = null;
@@ -189,19 +189,31 @@ public class SQLTarget extends CollBase {
 		Vector recordSet = new Vector();
 		PreparedStatement pstmt = null;
 		ResultSet result = null;
-		try {
-            if (!getState()) {
-                return recordSet;
-            }
+		if (!getState()) {
+			return recordSet;
+		}
 
+		try {
 			pstmt = dbConnection.prepareStatement(sql);
-			boolean hasResult = pstmt.execute();
+		} catch (SQLException e) {
+			throw new RuntimeException("Exception while exec sql :" + sql, e);
+		}
+
+		boolean hasResult = false;
+		try {
+			hasResult = pstmt.execute();
+		} catch (SQLException e) {
+			logger.error("pstmt.execute() has error!",e);
+			e.printStackTrace();
+		}
+		try {
+
 			if (hasResult) {
 				result = pstmt.getResultSet();
 				ResultSetMetaData rsmd = result.getMetaData();
 				int iColumnCount = rsmd.getColumnCount();
 				while (result.next()) {
-					java.util.Vector vTemp = new Vector();
+					Vector vTemp = new Vector();
 					for (int i = 0; i < iColumnCount; i++) {
 						Object oTemp = result.getObject(i + 1);
 						String sTemp = oTemp == null ? "" : oTemp.toString();
@@ -212,14 +224,9 @@ public class SQLTarget extends CollBase {
                 result.close();
 			}
 			pstmt.close();
-//            if (!"MySQL".equals(DBType)) {
-//                dbConnection.commit();
-//            }
 		} catch (Exception e) {
 			throw new RuntimeException("Exception while exec sql :" + sql, e);
 		} finally {
-//			releaseResources();
-
 				try {
 					if(pstmt!=null){
 						pstmt.close();
@@ -239,11 +246,11 @@ public class SQLTarget extends CollBase {
 		getConnection();
 		try {
 			if (!state) {
-                java.lang.Thread.sleep(5000);// 间隔5s重试第二次连接
+                Thread.sleep(5000);// 间隔5s重试第二次连接
 				System.err.println("--second--conn error----");
 				getConnection();
 				if (!state) {
-					java.lang.Thread.sleep(5000);// 再间隔5s重试第三次连接
+					Thread.sleep(5000);// 再间隔5s重试第三次连接
                     System.err.println("--third--conn error----");
                     getConnection();
 				}
@@ -326,8 +333,11 @@ public class SQLTarget extends CollBase {
 		return kpiinfo;
 	}
 
+	/**
+	 * 释放数据库连接
+	 */
 	public void release() {
-//		releaseResources();
+		releaseResources();
 	}
 
 }