輸出json數據：

public class Util {//public static String getString(String url) throws IOException {try {//1.創建一個網址的抽象表示URL u = new URL(url);//步驟：，////2. 打開鏈接URLConnection conn = u.openConnection(); //3.獲取字節輸入流InputStream in = conn.getInputStream();//4.將字節輸入流裝飾為能一次讀取多行文字的緩沖字符輸入流，BufferedReader br = new BufferedReader(new InputStreamReader(in, "UTF-8"));//5.讀取一行行的數據并匯總StringBuffer sf = new StringBuffer();String text = null;while((text = br.readLine()) != null){sf.append(text);}//將讀取的數據返回給調用者return sf.toString();}catch (Exception e){e.printStackTrace();}return null;}public static void main(String[] args) throws IOException {String json = getString("https://itdage.cn/hw/weather?city=%E6%9D%AD%E5%B7%9E");System.out.println(json);}}

注意點：

//可以換成String city = "北京" json = getString("https://itdage.cn/hw/weather?city="+URLEncoder.encode(city,"utf-8")

發短信：

先測試發送固定內容

public static void main(String[] args) throws IOException {String city = "北京";String name="b（￣▽￣）d　寶";name = URLEncoder.encode(name,"utf-8");// String json = getString("https://itdage.cn/hw/weather?city="+URLEncoder.encode(city,"utf-8"));//可以換成 String city = "北京" getString("https://itdage.cn/hw/weather?city="+URLEncoder.encode(city,"utf-8")//z System.out.println(json);//String phoneNumber = "19976883561";String s1 = "天晴";s1 = URLEncoder.encode(s1,"utf-8");String s2 = "30-32";String s3 = "記得注意休息哦~（捂臉）測一個簡單的發短信程序";s2 = URLEncoder.encode(s2,"utf-8"); s3 = URLEncoder.encode(s3,"utf-8");String json2 = getString("https://itdage.cn/hw/hwSms?name="+name+"&phoneNumber="+phoneNumber+"&s1="+s1+"&s2="+s2+"&s3="+s3);System.out.println(json2);}

輸出ok,手機上可以看到短信

用一個執行任務的線程：

public class SNStask {private static Boolean flag; private static Thread t1;public static void start(long time,String name,String phoneNumber,String city){//啟動任務的代碼if(!flag){t1 = new Thread(){ @Overridepublic void run() {flag = true;task:while (flag) {String text = Util.send(name, phoneNumber, city);if (!"OK".equals(text)) {continue;}try {Thread.sleep(time);} catch (InterruptedException e) {e.printStackTrace();break task;}} }};t1.start();}}public static void end(){flag = false;if(t1 != null){t1.interrupt();}} }

設置訪問路徑：

@WebServlet("/start") public class StartServlet extends HttpServlet {protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, UnsupportedEncodingException {request.setCharacterEncoding("utf-8");//設置編碼response.setContentType("text/json;charset=utf-8");//獲取參數、姓名、手機號、城市String name = request.getParameter("name");String phoneNumber = request.getParameter("phoneNumber");String city = request.getParameter("city");SNStask.start(time,name,phoneNumber,city);}} 與50位技術專家面對面20年技術見證，附贈技術全景圖

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