检索使用Spring Android框架通过HTTP POST JSON数据 [英] Retrieving JSON data via HTTP POST using Spring Android Framework

问题描述

我使用的春天Android框架通过HTTP POST检索JSON数据。不过，虽然消费的服务，在服务器端的参数接收空。

I am using spring android framework for retrieving json data via Http POST. But while consuming the service, at server side the parameter are received null.

下面是Android code：

Following is the android code :

protected String doInBackground(String... params) {
String username = params[0];

String password = params[1];

String url = connectServices.connectLoginServiceURL();// returns url

loginServiceParam = new LinkedMultiValueMap<String, String>();
loginServiceParam.add("username", username);
loginServiceParam.add("password", password); //username and password are null at server end.

HttpHeaders requestHeaders = new HttpHeaders();

requestHeaders.setAccept(Collections.singletonList(new MediaType("application", "json")));
requestHeaders.setContentType(MediaType.APPLICATION_JSON);

HttpEntity<MultiValueMap<String, String>> requestEntity = new HttpEntity<MultiValueMap<String, String>>(loginServiceParam, requestHeaders);

// Create a new RestTemplate instance
RestTemplate restTemplate = new RestTemplate();

// Add the Gson message converters
restTemplate.getMessageConverters().add(new GsonHttpMessageConverter());
restTemplate.getMessageConverters().add(new StringHttpMessageConverter());

// Make the HTTP POST request, marshaling the response from JSON

ResponseEntity<LoginBean> responseEntity = restTemplate.exchange(url, HttpMethod.POST, requestEntity, LoginBean.class);

LoginBean loginBeanResponse = responseEntity.getBody();

status = loginBeanResponse.getStatus();

return status;
}

LoginBean类是以下内容：

LoginBean class is following :

public class LoginBean {

    private String status;

    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }
}

JSON的反应是：

The json response is :

{"status":"true"}

谢谢！

推荐答案

我自己解决了这个查询。
继code需要放在

I myself resolved this query. Following code needs to be put

RestTemplate restTemplate = new RestTemplate(true);

真正需要POST请求。
默认情况下它是假的，这是对GET请求。
这甚至不是在春天的Andr​​oid参考链接

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