Question

我在weblogic中遇到错误：

java.lang.ClassCastException：weblogic.jdbc.wrapper.Array_oracle_sql_ARRAY无法转发到weblogic.jdbc.wrapper.CallableStatement_oracle_jdbc_driver_OracleCallableStatementWrapper.getARRAY（未知来源）
的oracle.sql.ARRAY

代码：

   public String[] methodName(String[] P1,String P2,String P3,String P4, String P5,int Sessioninfo)
{
    Connection conn = null;
    CallableStatement cstmt = null;
    ResultSet rs = null;
    String[] returnArray = null;

    try {
        ds=getDataSource(Sessioninfo);
        conn = ds.getConnection();
        conn = new CommonsDbcpNativeJdbcExtractor().getNativeConnection(conn);
        conn.setAutoCommit(false);

        ArrayDescriptor oracleVarchar2Collection =
                ArrayDescriptor.createDescriptor("VARRAY_PARTS",conn);
        ARRAY sqlNos = new ARRAY(oracleVarchar2Collection, conn, P1);

        cstmt =conn.prepareCall("{call Procedure1(?,?,?,?,?,?)}");
        cstmt.setObject(1, sqlNos);
        cstmt.setString(2, P2);
        cstmt.setString(3, WebpartsUtility.convertSQLStringIN(P3,","));
        cstmt.setString(4, WebpartsUtility.convertSQLStringIN(P4,","));
        cstmt.setString(5,P5);

        cstmt.registerOutParameter(6,OracleTypes.ARRAY, "VARRAY_PARTS");

        cstmt.setFetchSize(2500);
        cstmt.execute();
        ARRAY mainArray = ((OracleCallableStatement)cstmt).getARRAY(6);
        returnArray = (String[]) mainArray.getArray();

    } catch (SQLException ex) {
        logger.fatalMsg("Sql Exception Occured :: "+ex.getMessage(),ex);
    } catch (Exception ex) {
        logger.fatalMsg("Exception Occured :: "+ex.getMessage(),ex);
    } finally {
        try {
            if (cstmt != null) {
                cstmt.close();
                cstmt = null;
            }                       
            if (conn != null) {
                conn.close();
                conn = null;
            }
            if (ds != null) {
                ds = null;
            }
        } catch (SQLException ex) {
            logger.fatalMsg("Sql Exception Occured :: "+ex.getMessage(),ex);
        } catch (Exception ex) {
            logger.fatalMsg("Exception Occured :: "+ex.getMessage(),ex);
        }
    }

    return returnArray;
}

Answer 1

有时连接是作为本机连接的包装返回的，您需要打开它：

conn = new CommonsDbcpNativeJdbcExtractor().getNativeConnection(conn);
OracleConnection oConn;
if ( conn.isWrapperFor( OracleConnection.class ) )
{
  oConn = (OracleConnection) conn.unwrap( OracleConnection.class );
}
else
{
  oConn = (OracleConnection) conn;
}

或者，根据this answer，您可以获得基础可调用语句（而不是包装语句）：

OracleCallableStatement cstmt
    = (OracleCallableStatement) conn.prepareCall("{call Procedure1(?,?,?,?,?,?)}")
                                    .getUnderlyingStatement();

另一个可能的解决方案是不使用中间变量，只做：

returnArray = (String[]) ((OracleCallableStatement)cstmt).getARRAY(6).getArray();

<强>更新：

根据this answer您还可以尝试：

ARRAY mainArray = (ARRAY) ((weblogic.jdbc.wrapper.Array) (callableStmt).getObject(3))
                              .unwrap(ARRAY.class);

Answer 2

问题得到解决，添加以下代码：

class SearchBarContainer extends Component {
  selectPost = (post) => {
      this.props.history.push('/product/foo');
      this.props.actions.selectPost(post)
  }
  render() {
    return (
        <div>
          <div className="center-xs">
            <p>To get started, type in some keywords below</p>
          </div>
          <SearchBar onTermChange={this.props.actions.loadPosts} onNull={this.props.actions.nullPosts}/>  
          <PostList posts={this.props.posts} isFetching={this.props.isFetching} onClick={this.selectPost}/>
        </div>
    );
  }
}
export default withRouter(SearchBarContainer);

您可以查看以下链接：http://adfpractice-fedor.blogspot.com/2011/09/weblogic-wrapping-data-types.html

Answer 3

对数据源进行简单的参数更改即可使其正常工作。

转到数据源->选择数据源->配置->连接池->高级，然后取消选中“包装数据类型”。

这应该可以解决问题。

weblogic.jdbc.wrapper.Array_oracle_sql_ARRAY无法强制转换为oracle.sql.ARRAY

3 个答案: