最近写了一个 Spring Boot社区项目 ,支持发帖,评论等功能,给大家分享一下。
1.项目预览
1.主页

2.问题详情页回复

3.回复通知

2.项目地址:
话不多说,先给出项目地址。
3.项目核心:
- 接入github,使用户可以直接使用github账号登录。
- 集成editormd插件,实现markdown语法编辑并显示为html。
- 在editormd中使用ucloud上传图片。
- 数据库查询分页。
- 使用ajax提交请求,实现二级评论的加载。
4.核心代码
1.Github登录相关
private String client_id;
private String client_secret;
private String code;
private String redirect_uri;
private String state;
public String getClient_id() {
return client_id;
}
public void setClient_id(String client_id) {
this.client_id = client_id;
}
public String getClient_secret() {
return client_secret;
}
public void setClient_secret(String client_secret) {
this.client_secret = client_secret;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getRedirect_uri() {
return redirect_uri;
}
public void setRedirect_uri(String redirect_uri) {
this.redirect_uri = redirect_uri;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
}
2.编写GithubProvider.class:调用github官方给出的 OAuth Apps api,实现Github登录
@Component
public class GithubProvider {
public String getAccessToken(AccessTokenDTO accessTokenDto){
MediaType mediaType
= MediaType.get("application/json; charset=utf-8");
OkHttpClient client = new OkHttpClient();
RequestBody body = RequestBody.create(mediaType,JSON.toJSONString(accessTokenDto));
Request request = new Request.Builder()
.url("https://github.com/login/oauth/access_token")
.post(body)
.build();
try (Response response = client.newCall(request).execute()) {
String string =response.body().string();
String access_token=string.split("&")[0].split("=")[1];
return access_token;
}catch (Exception e)
{
e.printStackTrace();
}
return null;
}
public GithubUserDTO getGithubUser(String accessToken) {
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url("https://api.github.com/user?access_token=" + accessToken)
.build();
try {
Response response = client.newCall(request).execute();
String string = response.body().string();
GithubUserDTO githubUserDTO = JSON.parseObject(string, GithubUserDTO.class);
return githubUserDTO;
} catch (IOException e) {
return null;
}
}
}
3. Controller中调用GithubProvider获取用户数据并写入数据库
@Controller
public class AuthorizeController {
@Autowired
private GithubProvider githubProvider = null;
@Autowired
private UserService userService = null;
@Value("${github.client.id}")
private String clientID;
@Value("${github.client.secret}")
private String clientSC;
@Value("${github.redirect.url}")
private String redirectURL;
@Autowired
QuesDtoService quesDtoService;
@RequestMapping("/callback")
public String callback(@RequestParam(name = "code") String code,
@RequestParam(name = "state") String state,
HttpServletResponse response,
HttpServletRequest request) {
AccessTokenDTO accessTokenDto = new AccessTokenDTO();
accessTokenDto.setCode(code);
accessTokenDto.setState(state);
accessTokenDto.setClient_id(clientID);
accessTokenDto.setClient_secret(clientSC);
accessTokenDto.setRedirect_uri(redirectURL);
String accesstaken = githubProvider.getAccessToken(accessTokenDto);
GithubUserDTO githubUserDTO = githubProvider.getGithubUser(accesstaken);
if (githubUserDTO != null) {
User user1 = null;
String token = UUID.randomUUID().toString();
try {
user1 = userService.findByGithubId(String.valueOf(githubUserDTO.getId()));
if (user1 != null) {
response.addCookie(new Cookie("token", token));
user1.setUser_token(token);
userService.upTokenById(token, user1.getUser_id());
} else {
User user = new User();
user.setUser_token(token);
user.setUser_name(githubUserDTO.getName());
user.setAccount_id(String.valueOf(githubUserDTO.getId()));
user.setGmt_create(System.currentTimeMillis());
user.setGmt_modified(user.getGmt_create());
user.setUser_img(githubUserDTO.getAvatarUrl());
user.setUser_bio(githubUserDTO.getBio());
user.setUser_blog(githubUserDTO.getBlog());
user.setUser_github(githubUserDTO.getHtml_url());
userService.Insert(user);
request.getSession().setAttribute("user", user);
response.addCookie(new Cookie("token", token));
}
} catch (Exception w) {
}
return "redirect:/";
} else {
return "redirect:/";
}
}
2.Ucloud 对象存储 UFile
1.UcloudProvider.class:
//ucloud上传文件
@Service
public class UcloudProvider {
private String buckname = "yremp";
@Value("${ucloud.publickey}")
private String publickey;
@Value("${ucloud.privatekey}")
private String privatekey;
public String upload(InputStream fileStream, String mimeType, String filename) {
String fileName;
String[] FilleName = filename.split("\\.");
if (FilleName.length > 1) {
fileName = UUID.randomUUID().toString() + "." + FilleName[FilleName.length - 1];
} else {
return null;
}
try {
// 授权
ObjectAuthorization OBJECT_AUTHORIZER = new UfileObjectLocalAuthorization(publickey, privatekey);
// 配置
ObjectConfig config = new ObjectConfig("hk", "ufileos.com");
PutObjectResultBean response = UfileClient.object(OBJECT_AUTHORIZER, config)
.putObject(fileStream, mimeType)
.nameAs(fileName)
.toBucket(buckname)
.setOnProgressListener(new OnProgressListener() {
@Override
public void onProgress(long bytesWritten, long contentLength) {
}
})
.execute();
if (response != null && response.getRetCode() == 0) {
String url = UfileClient.object(OBJECT_AUTHORIZER, config)
.getDownloadUrlFromPrivateBucket(fileName, buckname, 24 * 60 * 60 * 365 *10)
.createUrl();
return url;
} else {
throw new PeculiarException(PeculiarExceptionCodeAndMessage.FILE_UPLOAD_ERROR);
}
} catch (UfileClientException e) {
throw new PeculiarException(PeculiarExceptionCodeAndMessage.FILE_UPLOAD_ERROR);
} catch (UfileServerException e) {
throw new PeculiarException(PeculiarExceptionCodeAndMessage.FILE_UPLOAD_ERROR);
}
}
}
2.前端请求后调用UcloudProvider
@Controller
public class FileUploadController {
private String fileurl;
@Autowired
private UcloudProvider ucloudProvider;
@RequestMapping("/file/upload")
@ResponseBody
public FileDTO upload(HttpServletRequest request){
MultipartHttpServletRequest multipartHttpServletRequest=(MultipartHttpServletRequest) request;
MultipartFile file = multipartHttpServletRequest.getFile("editormd-image-file");
try {
//ucloudProvider 拿到文件url
String fileurl= ucloudProvider.upload(file.getInputStream(),file.getContentType(),file.getOriginalFilename());
FileDTO fileDTO = new FileDTO();
fileDTO.setSuccess(1);
fileDTO.setMessage("成功");
fileDTO.setUrl(fileurl);
return fileDTO;
} catch (Exception e) {
e.printStackTrace();
}
FileDTO fileDTO = new FileDTO();
fileDTO.setSuccess(1);
fileDTO.setMessage("成功");
fileDTO.setUrl(fileurl);
return fileDTO;
}
}
3.其他
至于集成editormd、数据库分页、和ajax 的简单使用感觉比较简单,教程也很多就不细说。
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