关闭游标数，，finally里关闭

src/com/platform/oracle/OracleConnector.java

@@ -152,13 +152,21 @@ public class OracleConnector {
 			flag = true;
 			FileOperateHelper.fileWrite(filePath + ".log", "执行结果：" + res
 					+ " \r\n");
-			statement.close();
 		} catch (SQLException e) {
 			flag = false;
 			FileOperateHelper.fileWrite(filePath + ".log",
 					e.getMessage() + "\r\n");
 			log.error(Custom4exception.OracleSQL_Except, e);
 		}
+		 finally {
+				if (null != statement) {
+					try {
+						statement.close();
+					} catch (SQLException e) {
+						log.error(Custom4exception.OracleSQL_Except, e);
+					}
+				}
+			}
 
 		return flag ;
 	}
@@ -184,7 +192,7 @@ public class OracleConnector {
 			flag = true;
 			FileOperateHelper.fileWrite(filePath + ".log", "执行结果："+ res
 					+ " \r\n");
-			statement.close();
+			
 			if (res < 1) {
 				flag = false;
 			}
@@ -195,6 +203,16 @@ public class OracleConnector {
 					e.getMessage() + "\r\n");
 			log.error(Custom4exception.OracleSQL_Except, e);
 		}
+		finally{
+			if (statement != null) {
+				try {
+					statement.close();
+				} catch (SQLException e) {
+					// TODO Auto-generated catch block
+					e.printStackTrace();
+				}
+			}
+		}
 		return flag;
 	}
 }

src/com/platform/service/OracleExtractHelper.java

@@ -46,7 +46,6 @@ public class OracleExtractHelper {
 			}
 			FileOperateHelper.fileWrite(filePath + ".log", sql + "\r\n"
 					+ "OK \r\n");
-			statement.close();
 
 		} catch (Exception e) {
 			FileOperateHelper.fileWrite(filePath, sql + "\r\n" + e.getMessage()
@@ -288,10 +287,18 @@ public class OracleExtractHelper {
 					log.error(Custom4exception.threadVolume_Oracle_Except, e);
 				}
 			}
-			statement.close();
 		} catch (SQLException e) {
 			log.error(Custom4exception.threadVolume_Oracle_Except, e);
 		}
+		finally {
+			if (null != statement) {
+				try {
+					statement.close();
+				} catch (SQLException e) {
+					log.error(Custom4exception.OracleSQL_Except, e);
+				}
+			}
+		}
 
 	}
 
@@ -303,15 +310,24 @@ public class OracleExtractHelper {
 	public boolean testConnect(Connection conn) {
 		String testSql = "select count(*) from user_tables";
 		boolean flag = false;
+		Statement statement = null;
 		try {
-			Statement statement = conn.createStatement();
+			statement = conn.createStatement();
 			if (statement.executeUpdate(testSql) > 0)
 				flag = true;
-			statement.close();
 		} catch (SQLException e) {
 			flag = false;
 			log.error(Custom4exception.threadVolume_Oracle_Except, e);
 		}
+		finally {
+			if (null != statement) {
+				try {
+					statement.close();
+				} catch (SQLException e) {
+					log.error(Custom4exception.OracleSQL_Except, e);
+				}
+			}
+		}
 		return flag;
 	}
 

test/com/platform/test/testStateThread.java

@@ -0,0 +1,20 @@
+package com.platform.test;
+
+public class testStateThread {
+	
+	public static void main(String[] args) {
+		
+		for (int i = 0; i < 100; i++) {
+			Thread t1 = new Thread(new testStatement(), "线程-"+i);
+			t1.setDaemon(true);
+			t1.start();
+		}
+		try {
+			Thread.sleep(50000);
+		} catch (InterruptedException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
+
+}

test/com/platform/test/testStatement.java

@@ -0,0 +1,63 @@
+package com.platform.test;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public class testStatement implements Runnable{
+	
+	private static Connection createConnect() {
+
+		Connection conn = null;
+		try {
+			Class.forName("oracle.jdbc.driver.OracleDriver");
+			conn = DriverManager.getConnection("jdbc:oracle:thin:@192.168.0.110:1590:ORCL", "system", "oracle");
+		} catch (SQLException e) {
+			e.printStackTrace();
+		} catch (ClassNotFoundException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		return conn;
+
+	}
+
+	@Override
+	public void run() {
+
+		Connection conn = createConnect();
+		
+		for(int i=0;i<1000;i++)
+		{
+		     Statement prepstmt = null;
+			try {
+//		    	 PreparedStatement prepstmt = conn.prepareStatement("select TABLESPACE_NAME from dba_tablespaces where TABLESPACE_NAME = 'ORCL'");
+//				int numi = prepstmt.executeUpdate();
+		    	prepstmt = conn.createStatement();
+				int numi = prepstmt.executeUpdate("select TABLESPACE_NAME from dba_tablespaces where TABLESPACE_NAME = 'ORCL'");
+				
+				
+				System.out.println(Thread.currentThread().getName()+"   "+i +"  :  "+ numi);
+			} catch (SQLException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+		     finally{
+		    	 if (prepstmt != null) {
+						try {
+							prepstmt.close();
+						} catch (SQLException e) {
+							// TODO Auto-generated catch block
+							e.printStackTrace();
+						}
+					}
+		     }
+		}
+		
+	
+		
+	}
+
+}