package wuyechun.springmvcdemo.controller; import java.io.File; import java.io.IOException; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import javax.validation.Valid; import org.apache.commons.io.FileUtils; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import wuyechun.springmvcdemo.model.User; import wuyechun.springmvcdemo.model.UserException; /******************************************************************************* * 功能说明: 用户控制类 * 2013-3-26 下午3:26:50 ycwu 创建文件 * * 修改说明: 创建文件 * 2013-3-26 下午3:26:50 ycwu 修改文件 * ******************************************************************************/ @Controller @RequestMapping("/user") public class UserController { //构造数据,存入HashMap中 private Map<String, User> users = new HashMap<String, User>(); public UserController() { users.put("admin", new User("admin", "123", "管理员", "admin@163.com")); users.put("zxm", new User("zxm", "123", "张小明", "zxm@qq.com")); users.put("lsg", new User("lsg", "123", "李四光", "lsg@gmail.com")); users.put("ssq", new User("ssq", "123", "孙三强", "ssq@sina.cn")); users.put("zy", new User("zy", "123", "赵一", "zy@sohu.com")); users.put("dw", new User("dw", "123", "王五", "wangwu@126.com")); } //登录 //传递参数的第一种方式 @RequestMapping(value="/login",method=RequestMethod.POST) private String login(String username,String password,HttpSession session){ if(!users.containsKey(username)){ throw new UserException("用户名不存在!"); } User user=users.get(username); if(!user.getPassword().equals(password)){ throw new UserException("用户密码不正确!"); } //将用户信息存入session中 session.setAttribute("user", user); return "welcome"; } //用户列表 @RequestMapping(value = "/list", method = RequestMethod.GET) private String list(Model model){ model.addAttribute("users", users); return "user/list"; } //跳转到"新增用户页面" @RequestMapping(value="add",method=RequestMethod.GET) private String add(@ModelAttribute("user") User user){ return "user/add"; } //新增用户 @RequestMapping(value="add",method=RequestMethod.POST) private String add(@Valid User user, BindingResult br){ if(br.hasErrors()){ return "user/add"; } users.put(user.getUsername(),user); return "redirect:/user/list"; } //删除用户 @RequestMapping(value="{username}/delete",method=RequestMethod.GET) private String delete(@PathVariable String username){ users.remove(username); return "redirect:/user/list"; } //获取用户信息,跳转到修改页面. @RequestMapping(value="{username}/update",method=RequestMethod.GET) private String update(@PathVariable String username,Model model){ model.addAttribute(users.get(username)); return "user/update"; } //更新用户信息 @RequestMapping(value="{username}/update",method=RequestMethod.POST) private String update(@PathVariable String username,@Valid User user,BindingResult br){ if(br.hasErrors()){ // 如果有错误直接跳转到update视图 return "user/update"; } users.put(username, user); return "redirect:/user/list"; } //跳转到上传页面 @RequestMapping(value="/upload") private String upload(){ return "/user/upload"; } //处理文件上传 @RequestMapping(value="/upload",method=RequestMethod.POST) private String upload(@RequestParam("attachs") MultipartFile attachs,HttpServletRequest req) throws IOException{ String realpath = req.getSession().getServletContext().getRealPath("/resources/upload"); File f = new File(realpath + "/" + attachs.getOriginalFilename()); FileUtils.copyInputStreamToFile(attachs.getInputStream(), f); return "/user/upload"; //如果是多个文件上传,参数可以采用数组的方式:@RequestParam("attachs") MultipartFile attachs //遍历循环,存入指定文件夹。 // for (MultipartFile attach : attachs) { // if (attach.isEmpty()) // continue; // File f = new File(realpath + "/" + attach.getOriginalFilename()); // FileUtils.copyInputStreamToFile(attach.getInputStream(), f); // } } @RequestMapping(value="/ajax",method=RequestMethod.GET) public String ajax(){ return "/user/ajax"; } @RequestMapping(value="/ajax",method=RequestMethod.POST,produces="text/html;charset=UTF-8") @ResponseBody public String ajax(String username){ return "hello,"+username; }
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