查询时发生错误，请高手解决

[lord_logic]

我用JDBC连ORACLE后，查询时发生错误，代码如下
con = getConnection31 () ;
Statement stmt = con.createStatement ( ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_READ_ONLY ) ;
ResultSet rs = stmt.executeQuery ( sql ) ;
执行最后一句的时候出了问题
错误代码如下，请帮帮我吧

java.sql.SQLException: Io 异常: Software caused connection abort: socket write e
rror
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:334)
at oracle.jdbc.driver.OracleStatement.open(OracleStatement.java:562)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStateme
nt.java:2786)
at oracle.jdbc.driver.OracleStatement.doScrollStmtExecuteQuery(OracleSta
tement.java:7204)
at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:
629)
at weblogic.jdbc.wrapper.Statement.executeQuery(Statement.java:316)

[hellenlong]

con 连接有没有问题，没有连接成功吧

[GerryYang]

sql单独拿出来,会不会出错.
如果OK的话.那就是java语法错了

[lord_logic]

汗！
sql单独拿出来也没有问题
java语法也没有问题