Java简单使用get方式调用url接口

编程小6 Java (49) 2023-10-02 18:12

Hi，大家好，我是编程小6，很荣幸遇见你，我把这些年在开发过程中遇到的问题或想法写出来，今天说一说Java简单使用get方式调用url接口,希望能够帮助你!!!。

调用天气预报接口举例：

package webservice.weather;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import java.net.*;
import java.io.*;
/**
* Created by yangjf on 2017/3/15
* Update date:
* Time: 23:11
* Describle :
* Result of Test:
* Command:
* Email: jifei.yang@ngaa.com.cn
*/
public class WebserviceWeather {
public static void main(String args[]) throws Exception {
URL u = new URL("http://api.k780.com:88/?app=weather.today&weaid=1&appkey=10003&sign=b59bc3ef6191eb9f747dd4e83c99f2a4&format=json");
InputStream in = u.openStream();
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
byte buf[] = new byte[1024];
int read = 0;
while ((read = in.read(buf)) > 0) {
out.write(buf, 0, read);
}
} finally {
if (in != null) {
in.close();
}
}
byte b[] = out.toByteArray();
String result=new String(b, "utf-8");
System.out.println("返回值："+result);
//可以使用fastjson解析
JSONObject json=JSONObject.parseObject(result);
System.out.println("success:"+json.getString("success"));
String obj = json.getString("result");
//如果返回多个数据，可以遍历，一般不用遍历
ResultWeatherInfo resInfo= JSON.parseObject(obj ,ResultWeatherInfo.class);
System.out.println("信息 :"+resInfo);
}
}
class ResultWeatherInfo{
private String days;
private String week;
private String cityno;
private String citynm;
private String cityid;
private String temperature;
private String temperature_curr;
private String humidity;
private String weather_curr;
private String weather_icon1;
private String wind;
public ResultWeatherInfo(){}
public ResultWeatherInfo(String days, String week, String cityno, String citynm, String cityid, String temperature, String temperature_curr, String humidity, String weather_curr, String weather_icon1, String wind) {
this.days = days;
this.week = week;
this.cityno = cityno;
this.citynm = citynm;
this.cityid = cityid;
this.temperature = temperature;
this.temperature_curr = temperature_curr;
this.humidity = humidity;
this.weather_curr = weather_curr;
this.weather_icon1 = weather_icon1;
this.wind = wind;
}
public String getDays() {
return days;
}
public void setDays(String days) {
this.days = days;
}
public String getWeek() {
return week;
}
public void setWeek(String week) {
this.week = week;
}
public String getCityno() {
return cityno;
}
public void setCityno(String cityno) {
this.cityno = cityno;
}
public String getCitynm() {
return citynm;
}
public void setCitynm(String citynm) {
this.citynm = citynm;
}
public String getCityid() {
return cityid;
}
public void setCityid(String cityid) {
this.cityid = cityid;
}
public String getTemperature() {
return temperature;
}
public void setTemperature(String temperature) {
this.temperature = temperature;
}
public String getTemperature_curr() {
return temperature_curr;
}
public void setTemperature_curr(String temperature_curr) {
this.temperature_curr = temperature_curr;
}
public String getHumidity() {
return humidity;
}
public void setHumidity(String humidity) {
this.humidity = humidity;
}
public String getWeather_curr() {
return weather_curr;
}
public void setWeather_curr(String weather_curr) {
this.weather_curr = weather_curr;
}
public String getWeather_icon1() {
return weather_icon1;
}
public void setWeather_icon1(String weather_icon1) {
this.weather_icon1 = weather_icon1;
}
public String getWind() {
return wind;
}
public void setWind(String wind) {
this.wind = wind;
}
@Override
public String toString() {
return "ResultWeatherInfo{" +
"days='" + days + '\'' +
", week='" + week + '\'' +
", cityno='" + cityno + '\'' +
", citynm='" + citynm + '\'' +
", cityid='" + cityid + '\'' +
", temperature='" + temperature + '\'' +
", temperature_curr='" + temperature_curr + '\'' +
", humidity='" + humidity + '\'' +
", weather_curr='" + weather_curr + '\'' +
", weather_icon1='" + weather_icon1 + '\'' +
", wind='" + wind + '\'' +
'}';
}
}