Question

我正在尝试从Java应用程序中调用MySQL存储过程。但是我收到以下错误：java.sql.SQLException: Internal error when parsing callable statement metadata (missing parameter type)。

从应用程序外部调用时，存储过程可以正常运行。此外，应用程序成功连接到数据库。

MySQL服务器：5.5.27
java版“1.7.0_15”
Java（TM）SE运行时环境（版本1.7.0_15-b03）
Java HotSpot（TM）64位服务器VM（版本23.7-b01，混合模式）

非常感谢任何帮助。谢谢！

Java代码：

protected Connection mysql;
...
try {
    CallableStatement query = this.mysql.prepareCall("{call spInsertUser(?,?,?,?,?,?,?)}");
    query.setString(1, "user");
    query.setString(2, "password");
    query.setString(3, "test");
    query.setString(4, "test");
    query.setString(5, "test");
    query.setString(6, "test");
    query.setString(7, "test");
    query.execute();
    query.close();
    this.mysql.close();
}
catch (SQLException e) {
    e.printStackTrace();
}

MySQL存储过程

CREATE DEFINER = `root`@`localhost` PROCEDURE `spInsertUser`(IN `nick` varchar(30),IN `pass` varchar(255),IN `param1` varchar(255),IN `param2`varchar(255),IN `param3` varchar(22), IN `param4` varchar(255), IN `param5` varchar(255))
    SQL SECURITY INVOKER
BEGIN
  DECLARE uid INT DEFAULT 0;

  # check if nick exists
  DECLARE userExists INT DEFAULT 0;
  SELECT count(*) INTO userExists FROM users WHERE nick = nick;
  IF (userExists > 0) THEN
    # do nothing if nick already exists
    # SIGNAL SQLSTATE '45000' SET MESSAGE_TEXT = 'User already exists!';
  ELSE
    # if nick doesn't exist, insert it
    INSERT INTO users (nick, pass, param1, created, active, param2) VALUES (nick, pass, param1, UNIX_TIMESTAMP(), 0, param2);
    SELECT LAST_INSERT_ID() INTO uid;

    IF (uid IS NOT NULL AND uid > 0) THEN
      # create email
      INSERT INTO emails (uid, email) VALUES (uid, email);
    END IF;
  END IF;
END

错误：

java.sql.SQLException: Internal error when parsing callable statement metadata (missing parameter type)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920)
at com.mysql.jdbc.DatabaseMetaData.getCallStmtParameterTypes(DatabaseMetaData.java:1836)
at com.mysql.jdbc.DatabaseMetaData.getProcedureOrFunctionColumns(DatabaseMetaData.java:4305)
at com.mysql.jdbc.DatabaseMetaData.getProcedureColumns(DatabaseMetaData.java:4146)
at com.mysql.jdbc.CallableStatement.determineParameterTypes(CallableStatement.java:856)
at com.mysql.jdbc.CallableStatement.<init>(CallableStatement.java:629)
at com.mysql.jdbc.JDBC4CallableStatement.<init>(JDBC4CallableStatement.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.CallableStatement.getInstance(CallableStatement.java:523)
at com.mysql.jdbc.ConnectionImpl.parseCallableStatement(ConnectionImpl.java:4313)
at com.mysql.jdbc.ConnectionImpl.prepareCall(ConnectionImpl.java:4397)
at com.mysql.jdbc.ConnectionImpl.prepareCall(ConnectionImpl.java:4371)
at pack.File.method(File.java:65)

Answer 1

虽然它当然不是最理想的解决方案，但我DROP然后重新定义了（相同的）存储过程以避免此错误。似乎元数据有些腐败。

Answer 2

就我而言，我发现当定义参数时名称和类型之间没有空格，会引发错误

CREATE DEFINER = `root`@`localhost` PROCEDURE `spInsertUser`(IN `nick` varchar(30),IN `pass` varchar(255),IN `param1` varchar(255),IN `param2`varchar(255),IN `param3` varchar(22), IN `param4` varchar(255), IN `param5` varchar(255))

param2 varchar（255）必须是param2 varchar（255）

Answer 3

您需要检查您的sql代码，检查空白区域。

CREATE DEFINER=`root`@`localhost` PROCEDURE `verifyregister`(IN `cdkey` varchar(16), IN `ingsid` int, IN `inusername` varchar(128) character set utf8, OUT `retcode` int)

Java SQL异常：解析可调用语句<missing parameter =“”type =“”> </missing>时出错

3 个答案: