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String sqlString = "{CALL MyStoredProcedure(?,?)}";

CallableStatement sqlStm = connection.prepareCall(sqlString);

sqlStm.setString(1, username);
sqlStm.registerOutParameter(2, Types.DECIMAL, 0); // <---- ERROR
sqlStm.execute();

这是我的错误堆栈跟踪：

java.sql.SQLException: Parameter number 2 is not an OUT parameter
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927)
    at com.mysql.jdbc.CallableStatement.checkIsOutputParam(CallableStatement.java:690)
    at com.mysql.jdbc.CallableStatement.registerOutParameter(CallableStatement.java:1881)
    at com.mysql.jdbc.CallableStatement.registerOutParameter(CallableStatement.java:1890)
    at com.isb.igt.database.StoredProcedures.preparationCalls(StoredProcedures.java:40)
    at com.isb.igt.database.StoredProcedures.main(StoredProcedures.java:236)

程序第一行：

CREATE DEFINER=devel@11.22.33.44 PROCEDURE MyStoredProcedure(IN login VARCHAR(255), OUT variable DECIMAL(20,2)

我不知道如何让它工作。

谢谢

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1 回答 1

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函数调用应该看起来像{? = call MyStoredProcedure(?)}

于 2013-10-15T11:47:10.043 回答