Mat*_*att 3 java json apache-httpclient-4.x
我想使用 CloseableHttpClient 发送 HTTP 请求,然后捕获 JSON 对象中的响应正文,以便我可以访问如下键值:responseJson.name 等
我可以使用下面的代码将响应正文捕获为字符串,但是如何将其捕获为 JSON 对象?
CloseableHttpClient httpClient = HttpClients.createDefault();
URIBuilder builder = new URIBuilder();
builder.setScheme("https").setHost("login.xxxxxx").setPath("/x/oauth2/token");
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Run Code Online (Sandbox Code Playgroud)URI uri = builder.build(); HttpPost request = new HttpPost(uri); HttpEntity entity = MultipartEntityBuilder.create() .addPart("grant_type", grantType) .build(); request.setEntity(entity); HttpResponse response = httpClient.execute(request); assertEquals(200, response.getStatusLine().getStatusCode()); //This captures and prints the response as a string HttpEntity responseBodyentity = response.getEntity(); String responseBodyString = EntityUtils.toString(responseBodyentity); System.out.println(responseBodyString);
您可以键入将响应字符串转换为 JSON 对象。
使用Jacksonwith将字符串转换为 JSONcom.fasterxml.jackson.databind:
假设您的 json 字符串表示如下: jsonString = "{"name":"sample"}"
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
ObjectMapper mapper = new ObjectMapper();
JsonNode node = mapper.readTree(responseBodyString);
String phoneType = node.get("name").asText();
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使用org.json库:
JSONObject jsonObj = new JSONObject(responseBodyString);
String name = jsonObj.get("name");
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