為什么80%的碼農(nóng)都做不了架構(gòu)師？>>> ??

功能：例子中輸出字符編碼為GBK，輸入流保護(hù) 50KB，讀取InputStream輸入流后輸出String字符串。

private static final String DEFAULT_ENCODING = "GBK";//編碼private static final int PROTECTED_LENGTH = 51200;// 輸入流保護(hù) 50KBpublic String readInfoStream(InputStream input) throws Exception {if (input == null) {throw new Exception("輸入流為null");}//字節(jié)數(shù)組byte[] bcache = new byte[2048];int readSize = 0;//每次讀取的字節(jié)長(zhǎng)度int totalSize = 0;//總字節(jié)長(zhǎng)度ByteArrayOutputStream infoStream = new ByteArrayOutputStream();try {//一次性讀取2048字節(jié)while ((readSize = input.read(bcache)) > 0) {totalSize += readSize;if (totalSize > PROTECTED_LENGTH) {throw new Exception("輸入流超出50K大小限制");}//將bcache中讀取的input數(shù)據(jù)寫(xiě)入infoStreaminfoStream.write(bcache,0,readSize);}} catch (IOException e1) {throw new Exception("輸入流讀取異常");} finally {try {//輸入流關(guān)閉input.close();} catch (IOException e) {throw new Exception("輸入流關(guān)閉異常");}}try {return infoStream.toString(DEFAULT_ENCODING);} catch (UnsupportedEncodingException e) {throw new Exception("輸出異常");}}

轉(zhuǎn)載于:https://my.oschina.net/zjcx/blog/679611

總結(jié)

以上是生活随笔為你收集整理的java读取InputStream输入流后输出String字符串的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺(jué)得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。