java读取文件内容方法总结大全（观止）（待续）

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例1：

String f3 = "/test/ttt/test1.txt";

BufferedReader br=new BufferedReader(new InputStreamReader(new FileInputStream(new File(f3))));
String str=null;
while((str=br.readLine())!=null)
{
System.out.println(str);

}

例2：

try {
String encoding = "GBK"; // 字符编码(可解决中文乱码问题 )
File file = new File("D:/test/ttt/test1.txt");
if (file.isFile() && file.exists()) {
InputStreamReader read = new InputStreamReader(
new FileInputStream(file), "UTF-8");
BufferedReader bufferedReader = new BufferedReader(read);
String lineTXT = null;
while ((lineTXT = bufferedReader.readLine()) != null) {
System.out.println(lineTXT.toString().trim());
}
read.close();
}else{
System.out.println("找不到指定的文件！");
}
} catch (Exception e) {
System.out.println("读取文件内容操作出错");
e.printStackTrace();
}

例3：

String f3 = "/test/ttt/test1.txt";
BufferedReader in = new BufferedReader(new FileReader(new File(f3)));

while(true){
String str = in.readLine();
if(str==null){
System.exit(0);
}
System.out.println(str);
}

参考：http://blog.csdn.net/weizhaozhe/article/details/3776959

http://www.cnblogs.com/qingblog/archive/2012/07/06/2579404.html

http://blog.csdn.net/qiyeliuli/article/details/52963451

http://blog.csdn.net/heirenheiren/article/details/39736493

http://www.cnblogs.com/lovebread/archive/2009/11/23/1609122.html

https://zhidao.baidu.com/question/389386541.html

https://zhidao.baidu.com/question/1859845067949887347.html

http://blog.csdn.net/thanklife/article/details/16856107

1.从电脑硬盘中搜索有指定字符串的文件：

2.指定目录搜索所有含有指定字符串的文件：

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