JAVA 中CLOB与Clob有区别

在JAVA中CLOB与Clob是有区别的类型。

(oracle.jdbc.internal.OracleCallableStatement)OracleCallableStatement能接收CLOB的数据类型，

(java.sql.CallableStatement)CallableStatement能接收Clob的数据类型。

CODE示例

PACKAGE

CREATE OR REPLACE PACKAGE BODY cux_test_clob_pkg IS
PROCEDURE test_lower_clob(p_parameter_id IN NUMBER,
                                    x_out_xml              OUT Clob) IS
        l_temp_str VARCHAR2(32767);

        l_temp_clob CLOB;
    BEGIN

        dbms_lob.createtemporary(x_out_xml,
                                 TRUE);
        l_temp_str := '<?xml version="1.0" encoding="GBK"?>' || fnd_global.newline;

        dbms_lob.writeappend(lob_loc => x_out_xml,
                             amount  => length(l_temp_str),
                             buffer  => l_temp_str);

    END;

PROCEDURE test_upper_clob(p_parameter_id IN NUMBER,
                                    x_out_xml              OUT CLOB) IS
        l_temp_str VARCHAR2(32767);

        l_temp_clob CLOB;
    BEGIN

        dbms_lob.createtemporary(x_out_xml,
                                 TRUE);
        l_temp_str := '<?xml version="1.0" encoding="GBK"?>' || fnd_global.newline;

        dbms_lob.writeappend(lob_loc => x_out_xml,
                             amount  => length(l_temp_str),
                             buffer  => l_temp_str);

    END;

END;

//获取CLOB

    private Clob getSuppRegXMLClob(OAPageContext pageContext, OAWebBean webBean,String parameterId){
        Clob clob = null;
        OADBTransaction localOADBTransactionImpl =
            (OADBTransaction)pageContext.getApplicationModule(webBean).getOADBTransaction();
        OracleCallableStatement localCallableStatement = null;
        LogUtil.of("getSuppRegXMLClob mappingId= "+mappingId+" suppCateMappingId="+suppItemCateMappingId,pageContext).print(pageContext);
        try {

            String str =
                "begin\n" +
                "  cux_test_clob_pkg.test_upper_clob(p_parameter_id => :1,\n" +
                "                                                     x_out_xml => :2);\n" +
                "end;";
            localCallableStatement = (oracle.jdbc.internal.OracleCallableStatement)localOADBTransactionImpl.createCallableStatement(str, 1);
            localCallableStatement.setObject(1, mappingId);
            localCallableStatement.registerOutParameter(2, OracleTypes.CLOB);
            localCallableStatement.execute();
            clob = localCallableStatement.getCLOB(2);
　　　　　　　localCallableStatement.close();　
        } catch (SQLException localException2) {
            clob = null;throw new OAException("getSuppRegXMLClob  cux_test_clob_pkg.test_lower_cloberror!"+localException2.getMessage());
        } finally {
            try {
                if (localCallableStatement != null)
                    localCallableStatement.close();
            } catch (Exception localException4) {
                throw new OAException("getSuppRegXMLClob  error!");
            }

        }

        return clob;
    }

//获取Clob

private CLOB getSuppRegXMLClob(OAPageContext pageContext, OAWebBean webBean,String parameterId){
        CLOB clob = null;
        OADBTransaction localOADBTransactionImpl =
            (OADBTransaction)pageContext.getApplicationModule(webBean).getOADBTransaction();
        CallableStatement localCallableStatement = null;
        LogUtil.of("getSuppRegXMLClob mappingId= "+mappingId+" suppCateMappingId="+suppItemCateMappingId,pageContext).print(pageContext);
        try {

            String str =
                "begin\n" +
                "  cux_test_clob_pkg.test_upper_clob(p_parameter_id => :1,\n" +
                "                                                     x_out_xml => :2);\n" +
                "end;";
            localCallableStatement = localOADBTransactionImpl.createCallableStatement(str, 1);
            localCallableStatement.setObject(1, mappingId);
            localCallableStatement.registerOutParameter(2, OracleTypes.CLOB);
            localCallableStatement.execute();
            clob = localCallableStatement.getClob(2);
　　　　　　  localCallableStatement.close();

        } catch (SQLException localException2) {
            clob = null;
            throw new OAException("getSuppRegXMLClob  cux_test_clob_pkg.test_upper_clob!"+localException2.getMessage());
        } finally {
            try {
                if (localCallableStatement != null)
                    localCallableStatement.close();
            } catch (Exception localException4) {
                throw new OAException("getSuppRegXMLClob  error!");
            }

        }

        return clob;
    }