java代码读取gitlab文件

可以使用 GitLab API 来读取 GitLab 上的文件。以下是一个使用 Java 读取 GitLab 文件的示例代码：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Base64;

public class GitLabFileReader {
    public static void main(String[] args) throws IOException {
        String gitLabApiUrl = "https://gitlab.example.com/api/v4/projects/<project-id>/repository/files/<file-path>/raw?ref=<branch-or-tag-name>";
        String gitLabAccessToken = "<access-token>";
        String filePath = "/path/to/file";
        String branchOrTagName = "master"; // or any other tag/branch name
        
        String encodedAccessToken = Base64.getEncoder().encodeToString(gitLabAccessToken.getBytes());
        String urlStr = gitLabApiUrl
                .replace("<project-id>", "your-project-id-here")
                .replace("<file-path>", filePath)
                .replace("<branch-or-tag-name>", branchOrTagName);

        URL url = new URL(urlStr);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.setRequestProperty("PRIVATE-TOKEN", gitLabAccessToken);

        int responseCode = connection.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String inputLine;
            StringBuffer response = new StringBuffer();
            while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
            }
            in.close();

            System.out.println(response.toString());
        } else {
            System.out.println("Failed to read file from GitLab. Response code: " + responseCode);
        }
    }
}

在上面的代码中，你需要将 `gitLabApiUrl` 变量替换为你 GitLab 服务器的 API 地址，`gitLabAccessToken` 变量替换为你的 GitLab 访问令牌，`filePath` 变量替换为要读取的文件在 GitLab 上的路径，`branchOrTagName` 变量替换为要读取的文件所在的分支或标签名称。然后运行代码，即可在控制台上看到文件的内容。