Servlet代码:
package com.test;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(urlPatterns = { "/Test2" })
public class Test2 extends HttpServlet {
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
// TODO 自动生成的方法存根
req.setCharacterEncoding("gbk");
resp.setContentType("text/html;charset=utf-8");
PrintWriter out = resp.getWriter();
String user = req.getParameter("user");
String email = req.getParameter("email");
String age = req.getParameter("age");
String time = req.getParameter("time");
String[] language = req.getParameterValues("language");
String jianyi = req.getParameter("jianyi");
out.println("<h1>用户输入的信息:</h1>");
out.println("用户名:" + user);
out.println("<br>用户邮箱:" + email);
out.println("<br>用户年龄:" + age);
out.println("<br>编程时间:" + time);
out.println("<br>编程语言:" + Arrays.toString(language));
out.print("<br>用户建议:" + jianyi);
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
// TODO 自动生成的方法存根
doPost(req, resp);
}
}
html代码:
<!DOCTYPE html>
<html>
<head>
<title>Html2.html</title>
<meta name="keywords" content="keyword1,keyword2,keyword3">
<meta name="description" content="this is my page">
<meta name="content-type" content="text/html; charset=gbk">
<script type="text/javascript"></script>
<style>
#home {
width: 400px;
height: 500px;
background-color: #FFE4C4;
padding-left: 10px;
padding-top: 20px;
}
.dl1 {
clear: both;
}
.dl1 dt {
float: left;
height: 30px;
line-height: 30px;
}
.dl1 dd {
float: left;
height: 30px;
line-height: 30px;
}
#head {
height: 320px;
}
#foot {
text-align: center;
}
</style>
</head>
<body>
<h1>潜在用户网络调查</h1>
<div id="home">
<form action="Test2" method="post">
<div id="head">
<dl class="dl1">
<dt>姓名:</dt>
<dd>
<input type="text" name="user" />
</dd>
</dl>
<dl class="dl1">
<dt>邮箱:</dt>
<dd>
<input type="text" name="email" />
</dd>
</dl>
<dl class="dl1">
<dt>年龄:</dt>
<dd>
<input type="radio" name="age" id="age1" value="小于18"
checked="checked" /><label for="age1">小于18</label> <input
type="radio" name="age" id="age2" value="18-25" /><label
for="age2">18-25</label> <input type="radio" name="age" id="age3"
value="26-40" /><label for="age3">26-40</label> <input
type="radio" name="age" id="age4" value="大于40" /><label
for="age4">大于40</label>
</dd>
</dl>
<dl class="dl1">
<dt>编程时间:</dt>
<dd>
<select name="time">
<option>不编程</option>
<option value="1年以下">1年以下</option>
<option value="1-2年">1-2年</option>
<option value="2-5年">2-5年</option>
<option value="5年以上">5年以上</option>
</select>
</dd>
</dl>
<dl class="dl1">
<dt>使用的编程语言:</dt>
<dd>
<input type="checkbox" name="language" id="language1" value="C" /><label
for="language1">C</label> <input type="checkbox" name="language"
id="language2" value="C++" /><label for="language2">C++</label>
<input type="checkbox" name="language" id="language3" value="C#" /><label
for="language3">C#</label> <input type="checkbox" name="language"
id="language4" value="JAVA" /><label for="language4">JAVA</label>
<input type="checkbox" name="language" id="language5" value="VB" /><label
for="language5">VB</label>
</dd>
</dl>
<dl class="dl1">
<dt>建议:</dt>
<dd>
<textarea name="jianyi" rows="10" cols="30" name="jianyi">输入建议...</textarea>
</dd>
</dl>
</div>
<div id="foot">
<input type="submit" value="提交" /> <input type="reset" value="重置" />
</div>
</form>
</div>
</body>
</html>
运行截图:
遇到问题:
1.显示用户输入信息页面，Servlet输出的汉字乱码
解决方案:将Servlet代码和Html中的编码格式都改为GBK
Servlet:
req.setCharacterEncoding("gbk");
Html:
<meta name="content-type" content="text/html; charset=gbk">
时间： 2024-10-12 13:24:06