7、账号设置/setting

上传头像将头像保存到本地/七牛云服务器，随机生成字符串作为图片的名称，表单提交再返回该界面。获取头像时，在本地获取，通过输入输出流，先读到缓冲区，再从缓冲区写出；在七牛云服务器获取时，不使用流的方式，直接通过文件名获取，将header的URL更新在user用户中。

8、更改密码/changePassword：表单提交新密码，判断密码是否符合标准，更新user信息，并退出登录，重定向到登录界面重新登录

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1.UserController：

package com.nowcoder.community.controller;import com.nowcoder.community.annotation.LoginRequired;
import com.nowcoder.community.entity.User;
import com.nowcoder.community.service.UserServiceImpl;
import com.nowcoder.community.util.CommunityUtil;
import com.nowcoder.community.util.HostHolder;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.multipart.MultipartFile;import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;@Controller
public class UserController {private static final Logger logger= LoggerFactory.getLogger(UserController.class);@Value("${community.path.upload}")private String uploadPath;@Value("${community.path.domain}")private String domain;@Value("${server.servlet.context-path}")private String contextPath;@Autowiredprivate UserServiceImpl userService;@Autowiredprivate HostHolder hostHolder;@LoginRequired@GetMapping("/setting")public String getSettingPage(){return "/site/setting";}@LoginRequired@PostMapping("/upload")public String uploadHeader(MultipartFile headerImage, Model model){if (headerImage==null){model.addAttribute("error","您还没有选择图片!");return "/site/setting";}String fileName=headerImage.getOriginalFilename();String suffix = fileName.substring(fileName.lastIndexOf("."));if (StringUtils.isBlank(suffix)){model.addAttribute("error","文件格式不正确!");return "/site/setting";}//生成随机文件名fileName= CommunityUtil.generateUUID()+suffix;//确定文件存放的路径File file1 = new File(uploadPath);if (!file1.exists()){file1.mkdir();}File file = new File(file1 + "/" + fileName);try {//存储文件headerImage.transferTo(file);} catch (IOException e) {logger.error("上传文件失败："+e.getMessage());throw new RuntimeException("上传文件失败，服务器发生异常!",e);}//更新当前用户的头像路径(web访问路径)// http://localhost:8080/community/header/xxx.pngUser user = hostHolder.getUser();String headerUrl=domain+contextPath+"/header/"+fileName;userService.updateHeader(user.getId(),headerUrl);return "redirect:/index";}@GetMapping("/header/{fileName}")public void getHeader(@PathVariable("fileName") String fileName, HttpServletResponse response){//服务器存放路径fileName=uploadPath+"/"+fileName;//文件后缀String suffix = fileName.substring(fileName.lastIndexOf("."));//响应图片response.setContentType("image/"+suffix);try (FileInputStream fis = new FileInputStream(fileName);ServletOutputStream os = response.getOutputStream();){byte[] bytes=new byte[1024];int len=0;while ((len=fis.read(bytes))!=-1){os.write(bytes,0,len);}} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {logger.error("读取头像失败："+e.getMessage());}}@LoginRequired@PostMapping("/updatePassword")public String updatePassword(String originalPassword,String newPassword,String confirmPassword,Model model){if (originalPassword==null){model.addAttribute("originalPasswordMsg","请输入原始密码!");return "/site/setting";}if (newPassword==null){model.addAttribute("newPasswordMsg","请输入新密码!");return "/site/setting";}if (confirmPassword==null){model.addAttribute("confirmPasswordMsg","请确认密码!");return "/site/setting";}//确认账号User user = hostHolder.getUser();if (!CommunityUtil.md5(originalPassword+user.getSalt()).equals(user.getPassword())){model.addAttribute("originalPasswordMsg","密码错误!");return "/site/setting";}if (!confirmPassword.equals(newPassword)){model.addAttribute("confirmPasswordMsg","两次输入的密码不一致!");return "/site/setting";}userService.updatePassword(user.getId(),CommunityUtil.md5(newPassword+user.getSalt()));return "redirect:/index";}
}

2.setting.html 

				<form class="mt-5" method="post" enctype="multipart/form-data" th:action="@{/upload}"><div class="form-group row mt-4"><label for="head-image" class="col-sm-2 col-form-label text-right">选择头像:</label><div class="col-sm-10"><div class="custom-file"><input type="file" th:class="|custom-file-input ${error!=null ? 'is-invalid' : ''}|" name="headerImage" id="head-image" lang="es" required=""><label class="custom-file-label" for="head-image" data-browse="文件">选择一张图片</label><div class="invalid-feedback" th:text="${error}">该账号不存在!</div></div></div></div><div class="form-group row mt-4"><div class="col-sm-2"></div><div class="col-sm-10 text-center"><button type="submit" class="btn btn-info text-white form-control">立即上传</button></div></div></form>