将从数据库失去的信息分别以HTML,XML,Json的形式输出
日期：2014-05-16 浏览次数：20504 次
将从数据库得到的信息分别以HTML,XML,Json的形式输出
package donghongyu.servlet;
import java.io.IOException;
public class PrintServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public PrintServlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("tex/html,encoding=UTF-8");
response.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
out.print(request.getParameter("name") + "你好,欢迎登入CSDN-JAVA班开发的web网页!");
// findUser(request, response);
// findUserXml(request, response);
// findUserJson(request, response);
}
public void findUser(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
response.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML>");
out.println("<HTML>");
out.println(" <HEAD><TITLE>数据库信息</TITLE></HEAD>");
out.println(" <BODY>");
out.println("数据库中的数据如下:<br/>");
// 创建userDaoImple的实例
UserDaoImpl userDaoImpl = new UserDaoImpl();
// 调用userDaoImple的实例内部的方法得到数据集合对象
List<Admin> list = userDaoImpl.findAll();
// 遍历集合
out.println("<table border='2' style='height:40px;width:400px'>");
out.println("<tr >");
out.println("<td>");
out.println("ID");
out.println("</td>");
out.println("<td>");
out.println("name");
out.println("</td>");
out.println("<td>");
out.println("pass");
out.println("</td>");
out.println("<td>");
out.println("sex");
out.println("</td>");
out.println("</tr>");
for (Admin admin : list) {
out.println("ID:" + admin.getId() + "\t姓名:" + admin.getName()
+ "\t密码:" + admin.getPass() + "\t性别:" + admin.getSex()
+ "<br/>");
out.println("<br/><br/>");
out.println("<tr height='40px'>");
out.println("<td>");
out.println(admin.getId());
out.println("</td>");
out.println("<td>");
out.println(admin.getName());
out.println("</td>");
out.println("<td>");
out.println(admin.getPass());
out.println("</td>");
out.println("<td>");
out.println(admin.getSex());
out.println("</td>");
out.println("</tr>");
}
out.println("</table>");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
public void findUserXml(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("application/xml");
response.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
out.println("&l
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