Servlet练习--写内容到文件

编写一个Servlet，能够向一个名为“22.txt”的文件中写入以下几行文字：“Javaeearchtecture”、“2016-09-22”、“Thursday”

工具：配置好的Myeclipse+Tomcat

过程：

test4/src/servlet/writefile.java代码

package servlet;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class writefile extends HttpServlet {


	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setCharacterEncoding("gb2312");
		PrintWriter out = response.getWriter();
		String filename = "22.txt";
		String realPath = request.getRealPath(filename);
		File file = new File(realPath);
		FileWriter writer = new FileWriter(file);
		BufferedWriter bufferedWriter = new BufferedWriter(writer);
		bufferedWriter.write("Java ee archtecture");
		bufferedWriter.newLine();
		bufferedWriter.write("2016-09-22");
		bufferedWriter.newLine();
		bufferedWriter.write("Thursday");
		bufferedWriter.newLine();
		
		bufferedWriter.flush();
		bufferedWriter.close();
		out.print("<font size=2>The file writing successful! Path is "+file.getAbsolutePath()+"</font>");
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doGet(request, response);
	}

}

启动工程，浏览器访问 localhost:8080/test4/servlet/writefile即可

结果：可在页面提示路径下找到写好的文件