如何在android中使用put方法向HTTPBody添加数据

我正在构建一个使用Uber API ride request端点的android应用程序。我在HTTPBody中添加数据时遇到问题，它显示出错误，例如不支持端点

这些是curl命令：

curl -X PUT 'https://sandbox-api.uber.com/v1/sandbox/requests/{REQUEST_ID}' 
\ -H 'Content-Type: application/json' 
\ -H 'Authorization: Bearer ' 
\ -d '{"status":"accepted"}'

代码：

---

首先，您希望PUT body的类型为

application/json

，但您正在将

httpPut

对象的实体设置为

UrlEncodedFormEntity

所以你需要先解决这个问题。 首先，您需要创建

StringEntity

对象，并将其

contentType

属性设置为

application/json

在您的例子中，由于json字符串将是

{“status”：“accepted”}

您需要像这样实例化

StringEntity

类

StringEntity input = new StringEntity("{\"status\":\"accepted\"}");

然后将内容类型设置为

input.setContentType("application/json");

然后将

httpput

entity属性设置为我们刚才创建的输入enity，如下所示：

httpput.setEntity(input);

就这样，就这样吧

httpput.setEntity(new UrlEncodedFormEntity(params));

前两行

因此，您的代码将如下所示

代码：

public JSONObject getStatus(String address, String requestId, String product_id, float start_latitude, float start_longitude, float end_latitude, float end_longitude, String token) {
    try {

        httpClient = new DefaultHttpClient();
        httpput = new HttpPut("https://sandbox-api.uber.com/v1/requests/"+requestId);
        httpput.setHeader("Authorization","Bearer "+token);
        httpput.setHeader("Content-type", "application/json");
        // Create the string entity
        StringEntity input = new StringEntity("{\"status\":\"accepted\"}");
        // set the content type to json
        input.setContentType("application/json");
        // set the entity property of the httpput 
        // request to the created input.
        httpput.setEntity(input);
        HttpResponse httpResponse = httpClient.execute(httpput);
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(
                is, "iso-8859-1"), 8);
        StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
            sb.append(line + "n");
        }
        is.close();

        json = sb.toString();
        Log.e("JSONStr", json);
    } catch (Exception e) {
        e.getMessage();
        Log.e("Buffer Error", "Error converting result " + e.toString());
    }

    try {
        jObj = new JSONObject(json);
    } catch (JSONException e) {
        Log.e("JSON Parser", "Error parsing data " + e.toString());
    }

    return jObj;
}

---

如果您想将此带到下一步，那么您需要在java概念中逐步实现Json序列化和反序列化，并学习如何从java对象生成Json字符串，然后，您可以将Java对象序列化为json字符串，并使用生成的json字符串实例化

StringEntity

。

服务器如何期望PUT主体？json？xml？url编码？它需要json格式实际上我不知道如何在HttpBody中附加状态您使用的是哪个http库？org.apache.httpcomponents:httpclient:4.5这些依赖项我正在使用，然后我还收到类似{“消息”：“此端点不支持方法”。，“代码”：“不允许方法”}我已经按照u建议对上述代码进行了更改，StringEntity输入=新的StringEntity（“{\”状态\“：\”接受\“}”）；setContentType（“应用程序/json”）；httpput.setEntity（输入）@RohanChavan那么这意味着HttpPut是不允许尝试HttpPost的

public JSONObject getStatus(String address, String requestId, String product_id, float start_latitude, float start_longitude, float end_latitude, float end_longitude, String token) {
    try {

        httpClient = new DefaultHttpClient();
        httpput = new HttpPut("https://sandbox-api.uber.com/v1/requests/"+requestId);
        httpput.setHeader("Authorization","Bearer "+token);
        httpput.setHeader("Content-type", "application/json");
        // Create the string entity
        StringEntity input = new StringEntity("{\"status\":\"accepted\"}");
        // set the content type to json
        input.setContentType("application/json");
        // set the entity property of the httpput 
        // request to the created input.
        httpput.setEntity(input);
        HttpResponse httpResponse = httpClient.execute(httpput);
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(
                is, "iso-8859-1"), 8);
        StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
            sb.append(line + "n");
        }
        is.close();

        json = sb.toString();
        Log.e("JSONStr", json);
    } catch (Exception e) {
        e.getMessage();
        Log.e("Buffer Error", "Error converting result " + e.toString());
    }

    try {
        jObj = new JSONObject(json);
    } catch (JSONException e) {
        Log.e("JSON Parser", "Error parsing data " + e.toString());
    }

    return jObj;
}