注意：本文案例資訊：IDE是eclipse，post請求伺服器，返回JSON資料。

先上程式碼：

		BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
		String line;
	        String result = "";
		while ((line = reader.readLine()) != null) {
			result += line;
		}

		System.out.println(result);

亂碼如下：

在網上查找了很久，試過了如下方法，均無效：

1.修改Windows->Preferences->Workspace->text file encoding成utf-8或GBK或GBK2312.

2.設定專案的run configurations：右鍵專案名->run as->run configurations->Arguments->VM arguments：-Dfile.encoding=UTF-8或GBK或GBK2312，Common裡面選擇Encoding也為對應的（如果下拉框沒有，手動輸入就行了）

把上邊附的程式碼替換成：

InputStreamReader is = new InputStreamReader(new GZIPInputStream(conn.getInputStream()), "UTF-8");
		
		StringBuilder sb = new StringBuilder();
        char[] cbuf = new char[1024];
        int len = 0;
        while ((len = is.read(cbuf)) != -1) {
            sb.append(cbuf, 0, len);
        }
		System.out.println(sb.toString());
		
 

輸出：