原文连接：https://www.jianshu.com/p/d6ab78e4ed73?tdsourcetag=s_pcqq_aiomsg
一、背景
我们目前正在对Jenkins进行二次开发，开源社区提供了针对jenkins的API，如:https://github.com/jenkinsci/java-client-api
但是，API支持的功能并不是很完善，如没有发现支持用户凭证的相关接口， 因此，只能通过其他解决方案来实现。
二、解决方案
2.1 curl命令行
参考文献：
https://stackoverrun.com/cn/q/8142466
2.1.1 方式一
curl -X POST 'http://user:token@jenkins_server:8080/credentials/store/system/domain/_/createCredentials' \ --data-urlencode 'json={ "": "0", "credentials": { "scope": "GLOBAL", "id": "identification", "username": "manu", "password": "bar", "description": "linda", "$class": "com.cloudbees.plugins.credentials.impl.UsernamePasswordCredentialsImpl" } }' 2.1.2 方式二
如果方式一，报403错误，如下所示：
<body><h2>HTTP ERROR 403</h2> <p>Problem accessing /credentials/store/system/domain/_/createCredentials. Reason: <pre> No valid crumb was included in the request</pre></p><hr><i><small>Powered by Jetty://</small></i><hr/> 可以使用下面的方式
CRUMB=$(curl -s 'http://user:token@jenkins_server:8080/crumbIssuer/api/xml?xpath=concat(//crumbRequestField,":",//crumb)') curl -H $CRUMB -X POST 'http://user:token@jenkins_server:8080/credentials/store/system/domain/_/createCredentials' \ --data-urlencode 'json={ "": "0", "credentials": { "scope": "GLOBAL", "id": "identification", "username": "manu", "password": "bar", "description": "linda", "$class": "com.cloudbees.plugins.credentials.impl.UsernamePasswordCredentialsImpl" } }' 2.2 Postman测试工具
postman测试post
查看原生的发送请求方式
如何看得懂，上面的协议呢？
https://blog.csdn.net/hairetz/article/details/6047905
2.3 Java代码
- 依赖的jar包
<dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.4.1</version> </dependency> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpcore</artifactId> <version>4.4.1</version> </dependency> - 代码如下：
public static void createUserCre(String id) { String url = "http://admin:11a8ff57440f35baead7a3cc8a21ec2c44@172.16.91.121:8888/jenkins/credentials/store/system/domain/_/createCredentials?"; HttpPost httpPost = new HttpPost(url); CloseableHttpClient client = HttpClients.createDefault(); String respContent = null; JSONObject jsonParam = new JSONObject(); JSONObject credentialsJsonParam = new JSONObject(); credentialsJsonParam.put("scope", "GLOBAL"); //注意，如果ID一样的话，插入失败 credentialsJsonParam.put("id", id); credentialsJsonParam.put("username", "abc520"); credentialsJsonParam.put("password", "123456"); credentialsJsonParam.put("description", "hello world jenkins hellow"); credentialsJsonParam.put("$class", "com.cloudbees.plugins.credentials.impl.UsernamePasswordCredentialsImpl"); jsonParam.put("credentials", credentialsJsonParam); jsonParam.put("", "0"); logger.info("=============:\t" + jsonParam.toString()); MultipartEntityBuilder builder = MultipartEntityBuilder.create(); builder.addTextBody("json", jsonParam.toString(), ContentType.MULTIPART_FORM_DATA); HttpEntity multipart = builder.build(); HttpResponse resp = null; try { httpPost.setEntity(multipart); resp = client.execute(httpPost); //注意，返回的结果的状态码是302，非200 if (resp.getStatusLine().getStatusCode() == 302) { HttpEntity he = resp.getEntity(); logger.info("----------------123----------666666---"); respContent = EntityUtils.toString(he, "UTF-8"); } } catch (Exception e) { logger.error(e.getMessage()); } logger.info("=========================:\t" + respContent); logger.info("=========================:\t" + resp.getStatusLine().getStatusCode()); } 开发时，可以根据自己的实际情况，进行调整。
三、补充
3.1 Java HttpClient 发送multipart/form-data带有Json文件的Post请求
说明：发送multipart/form-data带有Json文件的Post请求，文件内容其实就是json字符串，这种请求之前都是通过postman发的，见postman截图
postman form-data json文件1
postman form-data json文件2
依赖的jar包 ： httpclient-4.5.3.jar，httpmime-4.3.jar
- 代码：
import java.io.File; import java.io.FileInputStream; import java.io.IOException; import org.apache.http.HttpEntity; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.ContentType; import org.apache.http.entity.mime.MultipartEntityBuilder; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.util.EntityUtils; public class HttpMultipartFormdataDemo1 { public static void main(String[] args) throws ClientProtocolException, IOException { // 文件sTestsetFile：solr_etl_agent35.json是存有JSON字符串的文件 String sTestsetFile=System.getProperty("user.dir")+File.separator+"testdata"+File.separator+"solr_etl_agent35.json"; String sURL="http://172.16.101.46:14401/editorialincre"; CloseableHttpClient httpClient = HttpClients.createDefault(); HttpPost uploadFile = new HttpPost(sURL); MultipartEntityBuilder builder = MultipartEntityBuilder.create(); builder.addTextBody("field1", "yes", ContentType.TEXT_PLAIN); // 把文件加到HTTP的post请求中 File f = new File(sTestsetFile); builder.addBinaryBody( "file", new FileInputStream(f), ContentType.APPLICATION_OCTET_STREAM, f.getName() ); HttpEntity multipart = builder.build(); uploadFile.setEntity(multipart); CloseableHttpResponse response = httpClient.execute(uploadFile); HttpEntity responseEntity = response.getEntity(); String sResponse=EntityUtils.toString(responseEntity, "UTF-8"); System.out.println("Post 返回结果"+sResponse); } } 3.2 java实现http post通讯 并进行urlencode，编码方式utf-8
- 通讯实现
package com.token; import org.apache.http.NameValuePair; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.Map; public class HttpClientUtil { /** * 日志对象 */ private static final Logger LOGGER = LoggerFactory.getLogger(HttpClientUtil.class); private HttpClientUtil(){ } public static String doPost(String url, Map<String, String> param) { // 创建Httpclient对象 CloseableHttpClient httpClient = HttpClients.createDefault(); CloseableHttpResponse response = null; String resultString = ""; try { // 创建Http Post请求 HttpPost httpPost = new HttpPost(url); // 创建参数列表 if (param != null) { List<NameValuePair> paramList = new ArrayList<>(); for (String key : param.keySet()) { paramList.add(new BasicNameValuePair(key, param.get(key))); } // 模拟表单 UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList,"utf-8"); httpPost.setEntity(entity); } // 执行http请求 response = httpClient.execute(httpPost); resultString = EntityUtils.toString(response.getEntity(), "utf-8"); } catch (Exception e)