servlet中request与response的用法
2016-03-19 19:42
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Servlet的接口与实现类:
其中request方法为:
response方法为:
具体实例如下:
JAVA代码为:
HTML代码为:
其中request方法为:
response方法为:
具体实例如下:
JAVA代码为:
package shark.zd.servlets; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.Servlet; import javax.servlet.ServletConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; public class WlecomeServlet implements Servlet { /* * 撤销前需要做的事情 */ public void destroy() { // TODO Auto-generated method stub } //获得配置信息 public ServletConfig getServletConfig() { // TODO Auto-generated method stub return null; } public String getServletInfo() { // TODO Auto-generated method stub return null; } //初始化 public void init(ServletConfig arg0) throws ServletException { // TODO Auto-generated method stub } //在Servlet中做的事情在这里去做 public void service(ServletRequest request, ServletResponse response) throws ServletException, IOException { System.out.println("welcome被执行了"); PrintWriter out = response.getWriter(); request.getParameter("username"); String radio = request.getParameter("testRadio"); out.print(radio+" "); out.print(request.getParameter("sw")+" "); String[] c = request.getParameterValues("c1"); for(String str:c){ out.print(str+" "); } out.flush(); } } |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>test.html</title> </head> <body> <form action="wlecome"> 请输入你的名字:<input type="text" name="username" /></br> <input type="radio" name="testRadio" value="man">男</br> <input type="radio" name="testRadio" value="woman">女</br> <select name="sw"> <option value="s">s</option> <option value="w">w</option> </select> <input type="checkbox" name="c1" value="c1"> <input type="checkbox" name="c2" value="c2"> <input type="checkbox" name="c3" value="c3"> <input type="checkbox" name="c4" value="c4"> <input type="submit" value="提交" /> </form> </body> </html> |
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