234 lines
5.8 KiB
Markdown
234 lines
5.8 KiB
Markdown
# 账号设置
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---
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## 修改头像(上传文件)
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- 请求:必须是 Post 请求
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- 表单:enctype = "multipart/form-data"
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- Spring MVC:通过 MultipartFile 处理上传文件
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### DAO
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```java
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/**
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* 修改头像
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* @param id
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* @param headerUrl
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* @return
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*/
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int updateHeader(int id, String headerUrl);
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```
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### Service
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```java
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/**
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* 修改用户头像
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* @param userId
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* @param headUrl
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* @return
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*/
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public int updateHeader(int userId, String headUrl) {
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return userMapper.updateHeader(userId, headUrl);
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}
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```
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### Controller
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```java
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@Controller
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@RequestMapping("/user")
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public class UserController {
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......
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/**
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* 修改用户头像
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* @param headerImage
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* @param model
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* @return
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*/
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@PostMapping("/upload")
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public String uploadHeader(MultipartFile headerImage, Model model) {
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if (headerImage == null) {
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model.addAttribute("error", "您还没有选择图片");
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return "/site/setting";
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}
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// 获取文件后缀名
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String fileName = headerImage.getOriginalFilename();
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String suffix = fileName.substring(fileName.lastIndexOf(".")); // 文件后缀名
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if (StringUtils.isBlank(suffix)) {
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model.addAttribute("error", "图片文件格式不正确");
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return "/site/setting";
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}
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// 对用户上传的图片文件进行重新随机命名
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fileName = CommunityUtil.generateUUID() + suffix;
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// 确定文件存放的路径
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File dest = new File(uploadPath + "/" + fileName);
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try {
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// 存储图片文件
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headerImage.transferTo(dest);
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} catch (IOException e) {
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logger.error("上传文件失败" + e.getMessage());
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throw new RuntimeException("上传文件失败,服务器发生异常", e);
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}
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// 更新当前用户的头像的路径(web 访问路径)
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// http://localhost:8080/echo/user/header/xxx.png
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User user = hostHolder.getUser();
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String headUrl = domain + contextPath + "/user/header/" + fileName;
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userService.updateHeader(user.getId(), headUrl);
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return "redirect:/index";
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}
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/**
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* 响应/显示用户上传的图片文件
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* 即解析当前用户头像的路径(web 访问路径)http://localhost:8080/echo/user/header/fileName
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* @param fileName
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* @param response
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*/
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@GetMapping("/header/{fileName}")
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public void getHeader(@PathVariable("fileName") String fileName, HttpServletResponse response) {
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// 图片存放在服务器上的路径
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fileName = uploadPath + "/" + fileName;
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// 图片文件后缀名
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String suffix = fileName.substring(fileName.lastIndexOf("."));
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// 响应图片
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response.setContentType("image/" + suffix);
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try (
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FileInputStream fis = new FileInputStream(fileName);
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OutputStream os = response.getOutputStream();
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) {
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byte[] buffer = new byte[1024];
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int b = 0;
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while ((b = fis.read(buffer)) != -1) {
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os.write(buffer, 0, b);
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}
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} catch (IOException e) {
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logger.error("读取文件失败" + e.getMessage());
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}
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}
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```
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其中:
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```java
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try (
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FileInputStream fis = new FileInputStream(fileName);
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OutputStream os = response.getOutputStream();
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) {
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}
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```
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这样的写法的好处就是:写在括号里的流会被自动的关闭,不用我们在finally 里面手写关闭语句
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### 前端
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```html
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<form method="post" enctype="multipart/form-data" th:action="@{/user/upload}">
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<input type="file" th:class="|custom-file-input ${error != null ? 'is-invalid' : ''}|"
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name="headerImage">
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<div class="invalid-feedback" th:text="${error}"></div>
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```
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```xml
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<!--修改用户头像-->
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<update id="updateHeader">
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update user set header_url = #{headerUrl} where id = #{id}
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</update>
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```
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## 修改密码
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### DAO
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```java
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/**
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* 修改密码
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* @param id
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* @param password 新密码
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* @return
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*/
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int updatePassword(int id, String password);
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```
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```xml
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<!--修改密码-->
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<update id="updatePassword">
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update user set password = #{password} where id = #{id}
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</update>
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```
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### Service
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```java
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/**
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* 修改用户密码(对新密码加盐加密存入数据库)
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* @param userId
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* @param newPassword 新密码
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* @return
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*/
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public int updatePassword(int userId, String newPassword) {
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User user = userMapper.selectById(userId);
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newPassword = CommunityUtil.md5(newPassword + user.getSalt()); // 重新加盐加密
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return userMapper.updatePassword(userId, newPassword);
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}
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```
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### Controller
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```java
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/**
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* 修改用户密码
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* @param oldPassword 原密码
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* @param newPassword 新密码
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* @param model
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* @return
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*/
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@PostMapping("/password")
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public String updatePassword(String oldPassword, String newPassword, Model model) {
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// 验证原密码是否正确
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User user = hostHolder.getUser();
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String md5OldPassword = CommunityUtil.md5(oldPassword + user.getSalt());
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if (!user.getPassword().equals(md5OldPassword)) {
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model.addAttribute("oldPasswordError", "原密码错误");
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return "/site/setting";
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}
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// 判断新密码是否合法
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String md5NewPassword = CommunityUtil.md5(newPassword + user.getSalt());
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if (user.getPassword().equals(md5NewPassword)) {
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model.addAttribute("newPasswordError", "新密码和原密码相同");
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return "/site/setting";
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}
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// 修改用户密码
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userService.updatePassword(user.getId(), newPassword);
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return "redirect:/index";
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}
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```
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### 前端
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```html
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<form method="post" th:action="@{/user/password}">
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<input th:class="|form-control ${oldPasswordError != null ? 'is-invalid' : ''}|"
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name = "oldPassword" required>
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<div class="invalid-feedback" th:text="${oldPasswordError}"></div>
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```
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