Java读取本地文件内容并输出

下面是读取本地文件并输出内容的Java代码。
如果文件有中文，可能会乱码需要设置软件的编码格式。

	public static void readFile() {
    
    
		FileReader fileReader = null;
		BufferedReader br = null;
		String line = null;
		try {
    
    
			// Target file path
			File testFile = new File("E:\\Test_JAVAProgram\\TestReadFile\\file.txt");
			if(!testFile.exists()) {
    
    
				System.out.println(testFile.getName() + " isn't existed");
			}
			// Read target file
			fileReader = new FileReader(testFile);
			br = new BufferedReader(fileReader);
			line = br.readLine();
			while(line != null) {
    
    
				System.out.println(line);
				// Notice: the following statement is necessary.
				line = br.readLine();
			}
		}catch(Exception e) {
    
    
			e.toString();
		}
		finally {
    
    
			if(br != null) {
    
    
				try {
    
    
					br.close();
				}catch(Exception e) {
    
    
					e.toString();
					br = null;
				}
			}
			if(fileReader != null) {
    
    
				try {
    
    
					fileReader.close();
				}catch(Exception e) {
    
    
					e.toString();
				}
			}
		}
	}

while(line != null) {
System.out.println(line);
// Notice: the following statement is necessary.
line = br.readLine();
}
这里highlight出来的这一行代码，是需要注意的。没有这行代码会死循环。