JAVA实验用户登录代码.doc

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1、实验结果部分截图：（1）错误的用户名密码（2）错误提示页（3）正确的用户名密码（4）成功页面实验代码：Login部分：importjava.io.IOException;importjava.io.PrintWriter;importjavax.servlet.ServletException;importjavax.servlet.http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse;publicclassLoginextendsHt

2、tpServlet{/***Constructoroftheobject.*/publicLogin(){super();}/***Destructionoftheservlet.
*/publicvoiddestroy(){super.destroy();//Justputs"destroy"stringinlog//Putyourcodehere}/***ThedoGetmethodoftheservlet.
**Thismethodiscalledwhenaformhasitstagvaluemethodequalstoget.**@paramrequestthereque

3、stsendbytheclienttotheserver*@paramresponsetheresponsesendbytheservertotheclient*@throwsServletExceptionifanerroroccurred*@throwsIOExceptionifanerroroccurred*/publicvoiddoGet(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{response.setContentType("text/html"

4、);response.setCharacterEncoding("gb2312");PrintWriterout=response.getWriter();out.println("");out.println("");out.println("");out.println("");out.println("");out.print("

5、"form1"method="post"action="./loginuser">");out.print("");out.println("用户名：");out.println("");out.println("