java - JSOUP + 多部分/表单数据响应

Question

一般情况下，我需要通过JSOUP以response multipart/form-data的形式将数据发送到站点

作为示例，采用一个简单的表单来执行您的查询。

<表单操作=« localhost:8000 » method=«post» enctype=«multipart/form-data»
<输入类型=«文本»名称=«文本»值=«文本默认»
<输入类型=«文件»名称=«文件1»
<输入类型=«文件»名称=«文件2»
提交

通过浏览器发布响应:

>Request Headers Provisional headers are shown Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Content-Type:multipart/form-data;
boundary=----WebKitFormBoundaryjtkXVNw9YVG1H2P9 Origin:null
Upgrade-Insecure-Requests:1 User-Agent:Mozilla/5.0 (Windows NT 6.1;
WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106
Safari/537.36
X-DevTools-Emulate-Network-Conditions-Client-Id:8DCCE949-56FA-4AB0-81B7-DA2BC7960E5C
 
->Request Payload
------WebKitFormBoundaryjtkXVNw9YVG1H2P9 Content-Disposition: form-data; name=«text»

text default
------WebKitFormBoundaryjtkXVNw9YVG1H2P9 Content-Disposition: form-data; name=«file1»; filename="" Content-Type:
application/octet-stream

------WebKitFormBoundaryjtkXVNw9YVG1H2P9 Content-Disposition: form-data; name=«file2»; filename="" Content-Type:
application/octet-stream

------WebKitFormBoundaryjtkXVNw9YVG1H2P9--

我尝试创建类似的请求，但一直没有找到正确的方法，让服务器接收到该请求。

我的代码:

Map<String, String> responseMap= new HashMap<String, String>();
    String key1 = "------WebKitFormBoundary9A3GpeDAwfa0TBDK\r\n" +
         "Content-Disposition: form-data; name=\"text\"\r\n\r\n";
    String value1 = "text default";
    headersMap.put(key1, value1);

    String key2 = "\r\n------WebKitFormBoundary9A3GpeDAwfa0TBDK\r\n" +
        "Content-Disposition: form-data; name=\"doc_sma_ref_file\"; filename=\"\"" +
        "\r\nContent-Type: application/octet-stream\r\n\r\n";
    String value2 = "";
    headersMap.put(key2, value2);

    String key3 = "\r\n------WebKitFormBoundary9A3GpeDAwfa0TBDK\r\n" +
        "Content-Disposition: form-data; name=\"doc_val_ref_file\"; filename=\"\"" +
        "\r\nContent-Type: application/octet-stream\r\n\r\n";
    String value3 = "";
    headersMap.put(key3, value3);
    
    String key4 = "\r\n------WebKitFormBoundary9A3GpeDAwfa0TBDK--";
    String value4 = "";
    headersMap.put(key4, value4);

    Connection.Response resBGT = Jsoup.connect(URL)
        .header("Content-Type", "multipart/form-data; boundary=----WebKitFormBoundary9A3GpeDAwfa0TBDK")
        .userAgent("Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36")
        .followRedirects(true)
        .data(responseMap)
        .cookies(cookies)
        .ignoreHttpErrors(true)
        .timeout(15000)
        .method(Connection.Method.POST)
        .execute();

也许有人有这方面的经验。如果您请发送正确的路径。也许有机会看到请求生成的jsoup

Answer 1

您可以使用Connection.data的第三个参数来完成此操作:

File file1 = new File("C:/dir/file1.txt");
File file2 = new File("C:/dir/file2.txt");
FileInputStream fs1 = new FileInputStream(file1);
FileInputStream fs2 = new FileInputStream(file2);
Connection.Response response = Jsoup.connect("http://www.example.com")
        .data("text", "value")
        .data("file1", "filename", fs1)
        .data("file2", "filename", fs2)
        .userAgent("Mozilla")
        .method(Method.POST)
        .execute();

//Handle your response...