帮忙看一下,写两个文件时,第一个文件写入成功,第二个写入失败.

Question

如题,代码如下:
   public void streamInFrom(DataInputStream dis) throws IOException {
        // Read the length (32 bits)
        length_ = dis.readInt();        if (length_ > MAX_LEN) {
            throw new IOException("Invalid Request length " + length_);
        }        requestType_ = dis.readInt();
        dataMode_    = dis.readInt();
        dataLen_     = dis.readInt();        if (dataLen_ > 0) {
            if (USER == requestType_ || PASS == requestType_ || RETR == requestType_) {
                byte buf[] = new byte[dataLen_];
                int read = dis.read(buf, 0, dataLen_);
                if (read == -1) {
                    throw new IOException("read client's request data error!");
                }
                this.data_ = new String(buf, ServerConfig.getTransferEncoding());
            }
            else if (STOR == requestType_) {
                this.dataFile_ = this.getStorFile();    //方法是建立一个文件,返回文件名
                int read = 0;
                int transfered = 0;
                byte buf[] = new byte[DATA_BUF];
                FileOutputStream fos = null;                try {
                    fos = new FileOutputStream(this.dataFile_);
                    while (transfered < this.dataLen_ && (read = dis.read(buf, 0, DATA_BUF)) != -1) {
                        fos.write(buf, 0, read);
                        transfered += read;
                    }
                }
                finally {
                    transfered = 0;
                    fos.flush();
                    fos.close();
                    this.unzip();
                }                byte buf2[] = new byte[DATA_BUF];
                this.dealedFile_ = this.getDealedFile();       //方法是建立另一个文件,返回文件名
                FileOutputStream fs = null;                try {
                    fs = new FileOutputStream(this.dealedFile_);
                    while (transfered < this.dataLen_ && (read = dis.read(buf2, 0, DATA_BUF)) != -1) {
                        fs.write(buf2, 0, read);
                        transfered += read;
                    }
                }
                finally {
                    transfered = 0;
                    fs.close();
                    this.unzip();
                }            }
            else {
                throw new IOException("service does not support the request with data!");
            }
        }
    }请大家帮忙看一下,谢谢了.

Answer 1

try { 
      fs   =   new   FileOutputStream(this.dealedFile_); 
     while   (transfered   <   this.dataLen_   &&   (read   =   dis.read(buf2,   0,   DATA_BUF))   !=   -1)   { 
                                                fs.write(buf2,   0,   read); 
                                                transfered   +=   read; 
                                        } 
                                } 
                                finally   { 
                                        transfered   =   0; 
                                        fs.close(); 
                                        this.unzip(); 
                                } 
 跟踪到了这一行,

Answer 2

唯一不一样的就是第二个少一个fs.flush();

Answer 3

去掉fs.flush()是一样的效果,

Answer 4

>跟踪到了这一行你那是好几行啊，你把fs.flush();加上看看吧

Answer 5

我再重现一下,最初的程序我是没有加fs.flush()的,这是我后来加上去的

Answer 6

try   {   
            fs       =       new       FileOutputStream(this.dealedFile_);   
          while       (transfered       <       this.dataLen_       &&       (read       =       dis.read(buf2,       0,       DATA_BUF))       !=       -1)       {   
                                                                                                fs.write(buf2,       0,       read);   
                                                                                                transfered       +=       read;   
                                                                                }   
                                                                }   
                                                                finally       {   
                                                                                transfered       =       0;   
                                                                                fs.close();   
                                                                                this.unzip();   
                                                                }   
就是跟踪到红色的这一行,就没有了下文了,问题应该是出在了这一行

Answer 7

研究了一下，问题可能出在this.dealedFile_ = this.getDealedFile();  你可以试一下，写第二个文件时仍然用第一个取得文件的方法this.dataFile_ = this.getStorFile();    
看看是否能写，可以的话第二个代码可能没问题，而是getDealedFile();里的问题      
            

Answer 8

dis.read 你已经读到头了,肯定就没有了啊.

Answer 9

我晕！
楼主看看第二个写文件的while究竟循环了没有吧               

Answer 10

停在那一行，不往下走了吗？？？finally里面的代码设个断点能不能到达？？

Answer 11

"dis.read   你已经读到头了,肯定就没有了啊."
"我晕！ 
楼主看看第二个写文件的while究竟循环了没有吧"
文件读到头了,没有了WHILE循环,谢谢大家.结贴了.