java代碼

package com.imooc.servlet;

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 AddTwoNumberServlet extends HttpServlet{

@Override

protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

String sum1 = request.getParameter("sum1");

String sum2 = request.getParameter("sum2");

double s1 = Double.parseDouble(sum1);

double s2 = Double.parseDouble(sum2);

double res = s1 + s2;

System.out.println("我被執行了！");

PrintWriter out = response.getWriter();

out.println("

加法計算的結果為：

運算結果為："+res+"

");

}

}

web.xml部分代碼

FirstServlet

index.html

index.htm

index.jsp

default.html

default.htm

default.jsp

first

com.imooc.servlet.FirstServlet

first

/hi

sample

com.imooc.servlet.SampleServlet

sample

/sample

add

com.imooc.servlet.AddTwoNumberServlet

add

/add

html

加法計算器

加數1:

加數2:

總結

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