我正在尝试解析JSON数据,我从远程服务器获取数据。我做一个HTTP来获取这些数据。我得到" java.lang.IllegalStateException:不是JSON对象:[{.." 我使用gson来解析数据并获取字段。(" endPointName")
代码:
public void getDevices() throws Exception{
// createHttpClient();
ContentExchange contentExchange = new ContentExchange(true);
contentExchange.setMethod("GET");
contentExchange.setURL("http://10.37.14.XX:8080/api/clients");
// contentExchange
httpClient.send(contentExchange);
if (contentExchange.waitForDone() == HttpExchange.STATUS_COMPLETED) {
System.out.println("##Sucesss");
int status = contentExchange.getStatus();
System.out.println(contentExchange.getResponseFields().getStringField("Content-Type"));
String responseContent = contentExchange.getResponseContent();
getAEDetails_gson(responseContent);
}else{
System.out.println("##failed");
}
}
private void getAEDetails_gson(String responseContent) throws Exception {
JsonElement jelement = new JsonParser().parse(responseContent);
JsonObject rootobj = jelement.getAsJsonObject();
JsonArray paymentsArray = rootobj.getAsJsonArray();
for (JsonElement pa : paymentsArray) {
JsonObject paymentObj = pa.getAsJsonObject();
String quoteid = paymentObj.get("endpoint").getAsString();
System.out.println("name is " + quoteid);
}
}
示例Json(响应内容)
[
{
"endpoint":"testclient",
"registrationId":"H9eTBcZbGf",
"registrationDate":"2017-01-20T00:00:17-05:00",
"lastUpdate":"2017-01-20T00:00:17-05:00",
"address":"10.37.3.24:56730",
"lwM2mVersion":"1.0",
"lifetime":300,
"bindingMode":"U",
"rootPath":"/",
"objectLinks":[
{
"url":"/",
"attributes":{
"rt":"123",
"ct":1543
}
},
{
"url":"/1/0",
"attributes":{
}
},
{
"url":"/1024/12",
"attributes":{
}
}
],
"secure":false,
"additionalRegistrationAttributes":{
}
},
{
"endpoint":"test2",
"registrationId":"1xqmsOx2QH",
"registrationDate":"2017-01-20T00:00:54-05:00",
"lastUpdate":"2017-01-20T00:00:54-05:00",
"address":"10.37.3.24:56830",
"lwM2mVersion":"1.0",
"lifetime":300,
"bindingMode":"U",
"rootPath":"/",
"objectLinks":[
{
"url":"/",
"attributes":{
"rt":"oma.lwm2m",
"ct":1543
}
},
{
"url":"/1/0",
"attributes":{
}
},
{
"url":"/1024/12",
"attributes":{
}
}
],
"secure":false,
"additionalRegistrationAttributes":{
}
}
]