使用Spring JDBC的Oracle存儲過程

Question

您好我正在嘗試使用Spring JDBC執行存儲過程。 這是SP類

class IncrementExtraBalanceStoredProcedure extends StoredProcedure { 

    /** 
    * @param jdbcTemplate 
    * @param procedureName 
    */ 
    public IncrementExtraBalanceStoredProcedure(JdbcTemplate jdbcTemplate, String procedureName) { 
     super(jdbcTemplate, procedureName); 
     declareParameter(new SqlOutParameter(O_RETURN_CODE, Types.INTEGER)); 
     declareParameter(new SqlParameter(P_NUMEC, Types.INTEGER)); 
     declareParameter(new SqlParameter(P_GBYTES, Types.INTEGER)); 
     compile(); 
    } 

    /** 
    * @param inputBean 
    * @return resultObjects 
    */ 
    public Map<String, Object> execute(RateLimitLogBean inputBean) { 
     Map<String,Object> sqlMap = new HashMap<String,Object>(); 
     sqlMap.put(P_NUMEC, inputBean.getNumec()); 
     sqlMap.put(P_GBYTES, inputBean.getGb()); 
     return super.execute(sqlMap); 
    } 

} 

我從這個方法調用這個類。

public int incrementExtraBalance(RateLimitLogBean inputBean) { 
    IncrementExtraBalanceStoredProcedure procedure = new IncrementExtraBalanceStoredProcedure(this.jdbcTemplate, "RATELIMIT_OWN.increment_extra_balance"); 
    Map<String, Object> resultMap = procedure.execute(inputBean); 
    if (!StringUtils.isEmpty(resultMap)) { 
     return ((Integer) resultMap.get(O_RETURN_CODE)).intValue(); 
    } 
    return -1; 
} 

但是我得到空值作爲O_RETURN_CODE。它應該返回0 從蟾蜍這個函數的執行 - Oracle數據庫

變種z個

EXEC RATELIMIT_OWN.unlimit_contract（0123：Z）

打印ž

我得到0作爲蟾蜍輸出。

爲什麼我將null值作爲Java代碼返回（無sql異常）。 代碼有什麼問題嗎？

本地調用的參數，返回正確的輸出

public void unlimitContract(RateLimitLogBean inputBean, boolean load) throws SQLException { 
    String sql = "{call RATELIMIT_OWN.unlimit_contract (?,?)}"; 
    CallableStatement callableStatement = this.dataSource.getConnection().prepareCall(sql); 
    callableStatement.setInt(1, 0123); 
    callableStatement.registerOutParameter(2, java.sql.Types.INTEGER); 

    callableStatement.executeUpdate(); 

    int resultCode = callableStatement.getInt(2); 
} 

SQL SP

CREATE OR REPLACE PROCEDURE RATELIMIT_OWN.increment_extra_balance (p_numec IN NUMBER, 
    p_gbytes   IN NUMBER, 
    o_return_code OUT NUMBER) 
AS 

    message   logs.errormsg%TYPE; 

BEGIN 

    update balance set extrabalance=extrabalance+(p_gbytes*1073741824),limited=0 WHERE numec = p_numec; 

    IF SQL%ROWCOUNT = 0 
    THEN 
    o_return_code:=1; 
    ELSE 
    o_return_code:=0; 
    message := 'Cops added ' || p_gbytes || ' gb extra volume'; 
    INSERT INTO logs (logid, eventid, origin, numec, VALUE, errormsg) VALUES (seq_log.NEXTVAL, 'NEXTRAROV', 'increment_extra_balance', p_numec, p_gbytes, message); 
    END IF; 

    commit; 

    EXCEPTION 
    WHEN OTHERS 
    THEN 
     o_return_code := SQLCODE; 
     ROLLBACK; 

END; 
/

Answer 1

順序看起來是錯誤的。試試：

declareParameter(new SqlParameter(P_NUMEC, Types.INTEGER)); 
    declareParameter(new SqlParameter(P_GBYTES, Types.INTEGER)); 
    declareParameter(new SqlOutParameter(O_RETURN_CODE, Types.INTEGER));