SpringMVC+Mysql实例详解

package com.yjde.springmvc; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.validation.BindException; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.SimpleFormController; @SuppressWarnings("all") // SimpleFormController是spring提供的表单控制器，把页面中Form中的元素名称设定为和bean中的一样，当传入的时候Spring会自动抓取form中和Bean名称一样的元素值，把它转换成一个bean,使得开发人员可以很方便的使用。 public class UserController extends SimpleFormController { private String viewpage; private UserDao dao; public String getViewpage() { return viewpage; } public void setViewpage(String viewpage) { this.viewpage = viewpage; } @Override protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object command, BindException errors) throws Exception { UserDao tmp = (UserDao) command; Collection<UserPO> list = dao.doquery(); List<UserPO> users = new ArrayList<UserPO>(); UserPO user; for (UserPO userPO : list) { user = new UserPO(); user.setUserId(userPO.getUserId()); user.setUserName(userPO.getUserName()); user.setUserAge(userPO.getUserAge()); users.add(user); } Map mp = new HashMap(); mp.put("list", users); return new ModelAndView(getViewpage(), mp); } public void setDao(UserDao dao) { this.dao = dao; } }