文件流出现下面异常，请问是那里出了问题，怎么修正代码啊？
异常内容：
java.util.zip.ZipException:no current ZIP entry
at java.util.zip.ZipPutputStream.write(ZipOutputStream.java:267)
at java.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
at java.nio.cs.StreamEncoder.impClose(StreamEncoder.java:297)
at java.nio.cs.StreamEncoder.close(StreamEncoder.java:130)
at java.io.OutputStreamWriter.close(OutputStreamWriter.java:217)
at java.io.BufferedWriter.close(BufferedWriter.java:249)
at test.batch.DataGet.doWrierZip(DataGet.java:409)
at test.batch.DataGet.excute(DataGet.java:204)
at test.batch.DataGet.main(DataGet.java:1110)
其中倒数第三行指向代码：
boolean isFinish = csvWriter.write(path,zipFileName,csvFileName,DataRS,endtime)
调用writer方法：
public final boolean write(final String path,final String zipFileName，final String csvFileName，final ResultSet DataRS，final String endtime) throws Exception {
ZipOutputStream zos=null;
BufferedWriter bw =null;
ZipEntry file=null;
int judgeNum=1000;
try {
String filePath = path+ zipFileName;
zos = new ZipPutputStream(New BufferedOutputStream(New FileOutputStream(filePath),Const.BUFFER_SIZE));
bw = new BufferedWriter(New OutputStreamWriter(zos,"SJIS"));
file = new ZipEntry(csvFileName);
zos.putNextEntry(file);
int timeJudgeCount=0;
long countData=0;
while(dataRS.next()){
timeJudgeCount++;
String data=getRowData(dataRS);
bw.write(data);
if(timeJudgeCount>judgeNum){
bw.flush();
Long nowtime=System.currentZTimeMillis();
if(nowtime>= endtime)｛
zos.colseEntry();
bw.close();
bw=null;
return false;
}
timeJudgeCount=0;
}
countData++；
｝
bw.flush();
zos.closeEntry();
bw,close;
bw=null;
Long nowtime=System.currentZTimeMillis();
if(nowtime>= endtime)｛
return false;
}
return true;
} finally {
if(bw!=null){
zos.closeEntry();
bw.close();
}
}
｝
------解决方案--------------------
是不是数据没有，或者流关闭的问题。
/**
* Writes an array of bytes to the current ZIP entry data. This method
* will block until all the bytes are written.
* @param b the data to be written
* @param off the start offset in the data
* @param len the number of bytes that are written
* @exception ZipException if a ZIP file error has occurred
* @exception IOException if an I/O error has occurred