AJAX

<pre name="code" class="java">public class test extends HttpServlet {

	public boolean isExist(String name){
		boolean flag=false;
		String []names={"test1","test2","test3"};
		for(String s:names){
			if(name.equals(s)) flag=true;
		}
		return flag;
	}
	
	public void doGet(HttpServletRequest request,HttpServletResponse response)
			throws ServletException,IOException {
		this.doPost(request,response);
	}


	public void doPost(HttpServletRequest request,IOException {
		response.setContentType("text/html;charset=utf-8");
		
		PrintWriter out = response.getWriter();
	
		String username=request.getParameter("uname");
		username = java.net.URLDecoder.decode(username,"UTF-8");//一次解码
		System.out.println(username);
		boolean flag=isExist(username);
		out.println(flag);
		
		out.flush();
		out.close();	
		
	}

}

（编辑：李大同）

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