java - 在java中发送POST http请求

Question

将下一个 curl 请求转换为单个 Java 请求代码的最佳方法是什么？

$ curl -i
  -H 'Content-Type: multipart/form-data' \
  -H "Accept: application/json" \
  -F "user[photo]=@test.jpg" \
  -F "user[first_name]=Test" \
  -F "user[password]=password" \
  -F "user[email]=email@test.com" \
  -F "user[last_name]=Testing" \
  -X POST http://someURL.com:3000/api/user?client_id=zyBCF8N6yiJq8k

*我已经尝试过下一个：

    HttpPost postRequest = new HttpPost(AP("users", null));
    FileBody bin = new FileBody(new File(IMAGE_DIR + "/" + "nisbet-profile.jpg"));
    log.info("exporting file in path " + bin.getFile().getPath());
    MultipartEntity entity = new MultipartEntity();
    entity.addPart("photo", bin);
    entity.addPart("first_name", new StringBody("test"));
    entity.addPart("last_name", new StringBody("test"));
    entity.addPart("email", new StringBody("testemail23@gmail.com"));
    entity.addPart("password", new StringBody("123456"));

    RestExporter picExporter = new RestExporter();
    postRequest.setEntity(entity);
    HttpResponse response = picExporter.request(postRequest);



    but I get: HTTP/1.1 422 Unprocessable Entity

    Any idea what I'm doing wrong?

Answer 1

查看curl选项的含义

-i, --include (HTTP)
-H, --header <header>
-F, --form <name=content>
-X, --request <command>

想想这些选项的含义

• 您包括 HTTP 标头
• 你设置Content-Type和Accept标题
• 您设置表单域
• 你POST到一个 URL

使用 Apache HttpComponents

• 转到https://hc.apache.org/httpcomponents-client-4.3.x/并阅读文档。
• 编写你的代码。