To read files on a web page

package com.example.copydemo.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.io. * ;

/**
 * @program: copy-demo
 * @description:
 * @author: Gaojq
 * @create: 2020-01-14 16:29
 **/

@RestController
@RequestMapping("file")
public class CopyController {

    protected static final Logger logger= LoggerFactory.getLogger(CopyController.class);

    /**
     * View file content directly on the page
     * @throws FileNotFoundException
     * @throws UnsupportedEncodingException
     */
    @RequestMapping("look")
    public String look() throws FileNotFoundException, UnsupportedEncodingException {
        FIS the FileInputStream = new new the FileInputStream ( "D: \\ Git code \\ \\ \\ TRADE trade_sync the src \\ \\ \\ main Java COM \\ \\ \\ newflows Sync \\ \\ ExecutorConfig.java Executor"); // selected file 
        the InputStreamReader ISR = new new the InputStreamReader (FIS, "UTF-. 8"); // read file 
        the BufferedReader br = new new the BufferedReader (ISR); // read the file into the buffer 
        String line;
        Tmp String = "<pre style = 'background: #eee; padding: 10px; border-RADIUS: 5px;'>" ;
         the while ( to true ) // continuously withdrawn row of data in the buffer 
        {
             the try {
                 IF (((! = br.readLine Line ()) =! null )) {
                     BREAK ;
                }
                System.out.println(line);
                tmp+=line;
                tmp+="\n";
            } catch (IOException e) {
                e.printStackTrace ();
            }

        }
        tmp+="</pre>";
        return tmp;
    }
}

http://localhost:8080/file/look