MultipartEntity 类型已弃用

文档说org.apache.http.entity.mime.MultipartEntity http://hc.apache.org/httpcomponents-client-ga/httpmime/apidocs/org/apache/http/entity/mime/MultipartEntity.html类已被弃用。有人可以建议我一个替代方案吗？

我在我的代码中使用它，如下所示：

entity.addPart("params", new StringBody("{\"auth\":{\"key\":\""
            + authKey + "\"},\"template_id\":\"" + templateId + "\"}"));
entity.addPart("my_file", new FileBody(image));
httppost.setEntity(entity);

如果您仔细阅读文档，您会发现您应该使用MultipartEntityBuilder http://hc.apache.org/httpcomponents-client-ga/httpmime/apidocs/org/apache/http/entity/mime/MultipartEntityBuilder.html作为备选。

例如：

MultipartEntityBuilder builder = MultipartEntityBuilder.create();        

/* example for setting a HttpMultipartMode */
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

/* example for adding an image part */
FileBody fileBody = new FileBody(new File(image)); //image should be a String
builder.addPart("my_file", fileBody); 
//and so on

请注意，有几个构造函数FileBody http://hc.apache.org/httpcomponents-client-ga/httpmime/apidocs/org/apache/http/entity/mime/content/FileBody.html类，您可以通过它提供mimeType, 内容类型, etc.

当你完成通过后构建说明给建造者，你可以得到建造的HttpEntity http://hc.apache.org/httpcomponents-core-ga/httpcore/apidocs/org/apache/http/HttpEntity.html?is-external=true通过调用MultipartEntityBuilder#build() http://hc.apache.org/httpcomponents-client-ga/httpmime/apidocs/org/apache/http/entity/mime/MultipartEntityBuilder.html method:

HttpEntity entity = builder.build();