提交表单代码：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <h1>测试请求参数</h1> <> <> <a href="/Web/AAServlet?xxx=王大炮&yyy=123456">点击这里</a> <hr /> <form action="/Web/AAServlet" method="post"> 用户名:<input type="text" name="username" /><br /> 密 码:<input type="password" name="password" /><br /> 性 别:<input type="radio" name="sex" checked="checked" value="男">男 <input type="radio" name="sex" value="女">女<br /> 爱 好:<input type="checkbox" name="hobby" value="吃饭" />吃饭 <input type="checkbox" name="hobby" value="睡觉" />睡觉 <input type="checkbox" name="hobby" value="打代码" />打代码 <br/> <input type="submit" value="提交" /> </form> </body> </html>
Servlet代码：
package request请求获取Post或者get参数; import java.io.IOException; import java.util.Arrays; import java.util.Enumeration; import java.util.Iterator; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /* * 演示request获取请求参数 */ @WebServlet("/AAServlet") public class AAServlet extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println("get:"+request.getParameter("xxx")); System.out.println("get:"+request.getParameter("yyy")); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=utf-8"); String username = request.getParameter("username"); String password = request.getParameter("password"); String[] hobby = request.getParameterValues("hobby"); System.out.println(username+","+password+","+Arrays.toString(hobby)); /* * 测试获取所有请求参数的名称 */ Enumeration<?> names2 = request.getParameterNames(); while(names2.hasMoreElements()){ System.out.println(names2.nextElement()); } // Iterator<String> names = (Iterator<String>) request.getParameterNames(); // while(names.hasNext()){ // System.out.println(names.next()); // } /* * 获取所有请求参数，封装到Map中 */ Map<String,String[]> map = (Map<String,String[]>)request.getParameterMap(); for(String name:map.keySet()){ String[] values = map.get(name); System.out.println(name+"="+Arrays.toString(values)); } } }
以上就是小编为大家带来的request请求获取参数的实现方法(post和get两种方式)的全部内容了，希望对大家有所帮助，多多支持查字典教程网~