无法通过java代码触发jenkins作业

Question

我试图通过java代码触发jenkins的工作。我在网上找到了源代码，我没能让它正常工作。我一直得到“服务器返回的HTTP错误代码403"

请查找示例代码：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URL;
import java.util.Base64;import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.AuthCache;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.BasicAuthCache;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class JenkinsScraper {
    public static void main(String[] args) throws ClientProtocolException, IOException{


        try {
            URL url = new URL ("http://localhost:8080/job/SampleJob/build");
            String encoding = Base64.getEncoder().encodeToString(("admin:admin").getBytes());

            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("POST");
            connection.setDoOutput(true);
            connection.setRequestProperty  ("Authorization", "Basic " + encoding);
            InputStream content = (InputStream)connection.getInputStream();
            BufferedReader in   = new BufferedReader (new InputStreamReader (content));
            String line;
            while ((line = in.readLine()) != null) {
                System.out.println(line);
            }
        } catch(Exception e) {
            e.printStackTrace();
        }
    }

我甚至试图跟随这个URL通过命令行触发Jenkins的工作，但我只是一个初学者，我不明白。

我是不是漏掉了什么。任何关于这方面的建议都是有帮助的。任何有用的例子都会很好。提前谢谢。

Answer 1

您必须传递下面列出的属性，并在Jenkins配置中更改配置。在“触发器远程构建”选项的Jenkins配置中设置带有某些值的令牌，在Jenkins URL的查询参数中使用该值

connection.setRequestProperty("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8");
connection.setRequestProperty("Accept-Language", "en-US");
connection.setRequestProperty("Accept-Encoding", "gzip, deflate");

​

​

Answer 2

Following code working as expected:

 try {
            URL url = new URL("http://localhost:8080/job/TestPrj/build"); // Jenkins URL localhost:8080, job named 'test'
            String user = "username"; // username
            String pass = "jenkinsapitoken"; // password or API token
            String authStr = user + ":" + pass;
            String encoding = Base64.getEncoder().encodeToString(authStr.getBytes("utf-8"));

            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("POST");
            connection.setDoOutput(true);
            connection.setRequestProperty("Authorization", "Basic " + encoding);
            InputStream content = connection.getInputStream();
            BufferedReader in = new BufferedReader(new InputStreamReader(content));
            String line;
            while ((line = in.readLine()) != null) {
                System.out.println(line);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }