Servlet练习--写内容到文件

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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

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