【java.file】将文本文件逐行读出，拼接为字符串返回的函数

简单实用的代码如下：

    static String readFromFile(String path) throws Exception{
        BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(path), "UTF-8"));

        String line = null;
        StringBuilder sb=new StringBuilder();
        while( ( line = br.readLine() ) != null ) {
            sb.append(line+"\n");
        }
        br.close();

        return sb.toString();
    }

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