/*
* Copyright 2008 biaoping.yin
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.frameworkset.common;
import java.sql.SQLException;
import com.frameworkset.common.poolman.DBUtil;
import com.frameworkset.common.poolman.PreparedDBUtil;
import com.frameworkset.common.poolman.handle.ValueExchange;
/**
* 测试如下方法是否正常工作
* dbUtil.getBinaryStream
* dbUtil.getUnicodeStream(
* dbUtil.getAsciiStream(
* getCharacterStream(
* <p>Title: TestStream.java</p>
*
* <p>Description: </p>
*
* <p>Copyright: Copyright (c) 2007</p>
* @Date Dec 5, 2008 3:12:22 PM
* @author biaoping.yin
* @version 1.0
*/
public class TestStream {
public static void testClob()
{
DBUtil dbUtil = new DBUtil();
try {
dbUtil.executeSelect("select clobname from test where id='test472'");
System.out.println("BinaryStream:" + ValueExchange.getStringFromStream(dbUtil.getBinaryStream(0, 0)));
System.out.println("UnicodeStream:" + ValueExchange.getStringFromStream(dbUtil.getUnicodeStream(0, 0)));
System.out.println("AsciiStream:" + ValueExchange.getStringFromStream(dbUtil.getAsciiStream(0, 0)));
System.out.println("Reader:" + ValueExchange.getStringFromReader(dbUtil.getCharacterStream(0, 0)));
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void testBlob()
{
PreparedDBUtil pdb = new PreparedDBUtil();
DBUtil dbUtil = new DBUtil();
try {
pdb.preparedUpdate("update test set blobname = ? where id = 'test472'");
pdb.setBlob(1, "blob".getBytes());
pdb.executePrepared();
dbUtil.executeSelect("select blobname from test where id='test472'");
System.out.println("BinaryStream:" + ValueExchange.getStringFromStream(dbUtil.getBinaryStream(0, 0)));
System.out.println("UnicodeStream:" + ValueExchange.getStringFromStream(dbUtil.getUnicodeStream(0, 0)));
System.out.println("AsciiStream:" + ValueExchange.getStringFromStream(dbUtil.getAsciiStream(0, 0)));
/**
* blob类型的字段不能直接转换为Reader对象,执行下述代码，系统会包以下异常
* java.sql.SQLException: Error type cast column index[0]:From [oracle.sql.BLOB] to [java.io.Reader]
at com.frameworkset.common.poolman.Record.getCharacterStream(Record.java:780)
at com.frameworkset.common.poolman.DBUtil.getCharacterStream(DBUtil.java:3033)
at com.frameworkset.common.TestStream.testBlob(TestStream.java:74)
at com.frameworkset.common.TestStream.main(TestStream.java:87)
*/
System.out.println("Reader:" + ValueExchange.getStringFromReader(dbUtil.getCharacterStream(0, 0)));
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void main(String[] args)
{
DBUtil.debugMemory();
testClob();
testBlob();
DBUtil.debugMemory();
java.util.Timer timer = new java.util.Timer();
}
}