访问oracle数据库报以下错误

Question

我的电脑上没有装有oracle数据库，访问公司的数据库，每次都是正确的，自从改成多线程以后，就报以上错误了，找了好多办法都不行，百度上一般三种解决方案都试过好几次了，都不行，求哪位大神看看
Io 异常: The Network Adapter could not establish the connection
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:333)
at oracle.jdbc.driver.OracleConnection.(OracleConnection.java:404)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:468)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:314)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:154)
at com.sinosoft.utility.DBConn.createConnection(DBConn.java:237)
at com.sinosoft.utility.DBConnPool.getConnection(DBConnPool.java:89)
at com.sinosoft.utility.ExeSQL.getOneValue(ExeSQL.java:76)
at com.sinosoft.prip.Batch.getCompanyCode(Batch.java:414)
at com.sinosoft.prip.DealBatchDataThread.executData(DealBatchDataThread.java:135)
at com.sinosoft.prip.DealBatchDataThread.call(DealBatchDataThread.java:113)
at com.sinosoft.prip.DealBatchDataThread.call(DealBatchDataThread.java:1)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
java.lang.NullPointerException
at com.sinosoft.utility.ExeSQL.getOneValue(ExeSQL.java:80)
at com.sinosoft.prip.Batch.getCompanyCode(Batch.java:414)
at com.sinosoft.prip.DealBatchDataThread.executData(DealBatchDataThread.java:135)
at com.sinosoft.prip.DealBatchDataThread.call(DealBatchDataThread.java:113)
at com.sinosoft.prip.DealBatchDataThread.call(DealBatchDataThread.java:1)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)

Answer 1

再怎么多线程，到最后DB操作的时候，也应该在一个事物里。你这是创建连接失败，检查创建连接的方式，检查下吧。我也不清楚你的创建连接怎样写的。