我试图使用Notes代理解析
JSON,使用Apache HttpClient获取JSON.
这是返回JSON的代码
import lotus.domino.*;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;
Session session = getSession();
AgentContext agentContext = session.getAgentContext();
HttpClient client = HttpClientBuilder.create().build();
HttpGet request = new HttpGet("http://api.acme.com/customer");
request.addHeader("accept","application/json");
request.addHeader("Host","api.acme.com");
request.addHeader("X-Api-Version","1.0");
request.addHeader("Authorization","Basic ...");
HttpResponse response = client.execute(request);
JSON看起来像这样.
[
{
"id": 123456,"insertDate": "2014-05-12T16:51:38.343","read": false,"site": "acme.com","Email": "john.doe@acme.com","location": "/customer/1212?v=1.0"
}
]
我曾尝试使用JSON.org中的JSONObject和JSONArray但无法使其工作
我需要一些来自json.org包的示例代码或其他解析json的方法.
解决方法
您可以使用
HttpResponse#getEntity从HttpResponse中的Entity获取JSON.一旦有了,就可以创建一个新的JSONArray并迭代该数组以访问JSON对象中的值：
String json = IoUtils.toString(response.getEntity().getContent());
JSONArray array = new JSONArray(json);
for (int i = 0; i < array.length(); i++) {
JSONObject object = array.getJSONObject(i);
log.info("the id is {}",object.getInt("id"));
log.info("the insertDate is {}",object.getString("insertDate"));
log.info("read is {}",object.getBoolean("read"));
log.info("the site is {}",object.getString("site"));
log.info("the Email is {}",object.getString("Email"));
log.info("the location is {}",object.getString("location"));
}
我在http://jsonblob.com/537a43bfe4b047fa2ef5f15d将JSON保存在JSONBlob中并创建了一个请求JSON的单元测试：
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.io.IoUtils;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;
import org.json.JSONArray;
import org.json.JSONObject;
import org.junit.Test;
@Slf4j
public class JsonTest {
@Test
public void test() throws Exception {
HttpClient client = HttpClientBuilder.create().build();
HttpGet request = new HttpGet("http://jsonblob.com/api/jsonBlob/537a43bfe4b047fa2ef5f15d");
request.addHeader("accept","application/json");
HttpResponse response = client.execute(request);
String json = IoUtils.toString(response.getEntity().getContent());
JSONArray array = new JSONArray(json);
for (int i = 0; i < array.length(); i++) {
JSONObject object = array.getJSONObject(i);
log.info("the id is {}",object.getInt("id"));
log.info("the insertDate is {}",object.getString("insertDate"));
log.info("read is {}",object.getBoolean("read"));
log.info("the site is {}",object.getString("site"));
log.info("the Email is {}",object.getString("Email"));
log.info("the location is {}",object.getString("location"));
}
}
}
运行它的输出是：
11:23:19.508 [main] INFO JsonTest - the id is 123456 11:23:19.516 [main] INFO JsonTest - the insertDate is 2014-05-12T16:51:38.343 11:23:19.516 [main] INFO JsonTest - read is false 11:23:19.516 [main] INFO JsonTest - the site is acme.com 11:23:19.516 [main] INFO JsonTest - the Email is john.doe@acme.com 11:23:19.516 [main] INFO JsonTest - the location is /customer/1212?v=1.0
我使用IOUtils类来转换来自HttpResponse实体的InputStream,但是无论如何你都可以这样做(并且像我那样转换它可能不是最好的想法,具体取决于JSON的大小).