将地址直接在浏览器输入，发现结果是[{"id":"9311","speed":"65","pm25":"83","temperature":"268","humidity":"66","temperature_warning":"0","gas_warning":"0","humidity_warning":"0","lowpower_warning":"0","mode":"1","timing_hour":"0","timing_minute":"0","timing_second":"0","update_time":"2018-06-28 21:01:10"},{"time":"184890422"}]
，是一个json数组。所以定义两个对象来接收，当然也可以不定义，直接转换成JSONObject。
public class ObjectOne {
private String id;
private String speed;
private String pm25;
private String temperature;
private String humidity;
private String temperature_warning;
private String gas_warning;
private String humidity_warning;
private String lowpower_warning;
private String mode;
private String timing_hour;
private String timing_minute;
private String timing_second;
private String update_time;
public ObjectOne() {
}
public ObjectOne(String id, String speed, String pm25, String temperature, String humidity, String temperature_warning, String gas_warning, String humidity_warning, String lowpower_warning, String mode, String timing_hour, String timing_minute, String timing_second, String update_time) {
this.id = id;
this.speed = speed;
this.pm25 = pm25;
this.temperature = temperature;
this.humidity = humidity;
this.temperature_warning = temperature_warning;
this.gas_warning = gas_warning;
this.humidity_warning = humidity_warning;
this.lowpower_warning = lowpower_warning;
this.mode = mode;
this.timing_hour = timing_hour;
this.timing_minute = timing_minute;
this.timing_second = timing_second;
this.update_time = update_time;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getSpeed() {
return speed;
}
public void setSpeed(String speed) {
this.speed = speed;
}
public String getPm25() {
return pm25;
}
public void setPm25(String pm25) {
this.pm25 = pm25;
}
public String getTemperature() {
return temperature;
}
public void setTemperature(String temperature) {
this.temperature = temperature;
}
public String getHumidity() {
return humidity;
}
public void setHumidity(String humidity) {
this.humidity = humidity;
}
public String getTemperature_warning() {
return temperature_warning;
}
public void setTemperature_warning(String temperature_warning) {
this.temperature_warning = temperature_warning;
}
public String getGas_warning() {
return gas_warning;
}
public void setGas_warning(String gas_warning) {
this.gas_warning = gas_warning;
}
public String getHumidity_warning() {
return humidity_warning;
}
public void setHumidity_warning(String humidity_warning) {
this.humidity_warning = humidity_warning;
}
public String getLowpower_warning() {
return lowpower_warning;
}
public void setLowpower_warning(String lowpower_warning) {
this.lowpower_warning = lowpower_warning;
}
public String getMode() {
return mode;
}
public void setMode(String mode) {
this.mode = mode;
}
public String getTiming_hour() {
return timing_hour;
}
public void setTiming_hour(String timing_hour) {
this.timing_hour = timing_hour;
}
public String getTiming_minute() {
return timing_minute;
}
public void setTiming_minute(String timing_minute) {
this.timing_minute = timing_minute;
}
public String getTiming_second() {
return timing_second;
}
public void setTiming_second(String timing_second) {
this.timing_second = timing_second;
}
public String getUpdate_time() {
return update_time;
}
public void setUpdate_time(String update_time) {
this.update_time = update_time;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder("{");
sb.append("\"id\":\"")
.append(id).append('\"');
sb.append(",\"speed\":\"")
.append(speed).append('\"');
sb.append(",\"pm25\":\"")
.append(pm25).append('\"');
sb.append(",\"temperature\":\"")
.append(temperature).append('\"');
sb.append(",\"humidity\":\"")
.append(humidity).append('\"');
sb.append(",\"temperature_warning\":\"")
.append(temperature_warning).append('\"');
sb.append(",\"gas_warning\":\"")
.append(gas_warning).append('\"');
sb.append(",\"humidity_warning\":\"")
.append(humidity_warning).append('\"');
sb.append(",\"lowpower_warning\":\"")
.append(lowpower_warning).append('\"');
sb.append(",\"mode\":\"")
.append(mode).append('\"');
sb.append(",\"timing_hour\":\"")
.append(timing_hour).append('\"');
sb.append(",\"timing_minute\":\"")
.append(timing_minute).append('\"');
sb.append(",\"timing_second\":\"")
.append(timing_second).append('\"');
sb.append(",\"update_time\":\"")
.append(update_time).append('\"');
sb.append('}');
return sb.toString();
}
}
public class ObjectTwo {
private String time;
public ObjectTwo() {
}
public ObjectTwo(String time) {
this.time = time;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder("{");
sb.append("\"time\":\"")
.append(time).append('\"');
sb.append('}');
return sb.toString();
}
}
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class ReadUrl {
public static void main(String args []){
String url = "http://www.yemaxgo.com/connect.php";
try{
String jsonStr = sendGet(url);
System.out.println(jsonStr);
//[{"id":"9311","speed":"65","pm25":"83","temperature":"268","humidity":"66","temperature_warning":"0","gas_warning":"0","humidity_warning":"0","lowpower_warning":"0","mode":"1","timing_hour":"0","timing_minute":"0","timing_second":"0","update_time":"2018-06-28 21:01:10"},{"time":"184884931"}]
JSONArray jsonArray = JSONArray.parseArray(jsonStr);
System.out.println(jsonArray);
JSONObject obj1 = (JSONObject) jsonArray.get(0);
JSONObject obj2 = (JSONObject) jsonArray.get(1);
System.out.println(obj1);
System.out.println(obj2);
ObjectOne objectOne = JSONObject.parseObject(obj1.toJSONString(),ObjectOne.class);
ObjectTwo objectTwo = JSONObject.parseObject(obj2.toJSONString(),ObjectTwo.class);
System.out.println(objectOne);
System.out.println(objectTwo);
}catch(Exception e){
e.printStackTrace();
}
}
public static String sendGet(String getUrl) throws Exception {
HttpURLConnection connection = null;
InputStream is = null;
BufferedReader br = null;
String result = null;
URL url = new URL(getUrl);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.connect();
if (connection.getResponseCode() == 200) {
is = connection.getInputStream();
br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
StringBuffer sbf = new StringBuffer();
String line = null;
while ((line = br.readLine()) != null) {
sbf.append(line);
}
result = sbf.toString();
}
return result;
}
}
