java utils--4.uuid

1  Uuid

1.1  Utils

public classCreateUuid {
   public static String getUUID() {
      return UUID.randomUUID().toString().replace("-","");
   }
}

1.2  Servlet

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2      简单页面

PrintWriter out = response.getWriter();

         out.println("<script>");

         out.println("if(confirm('没有酒店，是否添加?')) {");

         out.println("window.location.href='admin/add.jsp'");

         out.println("} else {");

         out.println("window.location.href='findServlet?event=queryAll'");

         out.println("}");

         out.println("</script>");

 

 

 

 

PrintWriter out = response.getWriter();

         out.println("<script>");

         out.println("alert('增加失败');");

         out.println("window.location.href='admin/add.jsp'");

         out.println("</script>");