java构造http请求

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【在java后台调用接口，发送http请求获取数据–GET】

public static void initmap(){        //发送http请求获取用于初始化的数据        BufferedReader in = null;        String result="";        try {            System.out.println("正在获取初始化所需数据---");            URL url=new URL("http://localhost:1188/border/website/indexrecord");            // 打开和URL之间的连接            URLConnection connection = url.openConnection();            // 设置通用的请求属性            connection.setRequestProperty("accept", "*/*");            connection.setRequestProperty("connection", "Keep-Alive");            connection.setRequestProperty("user-agent",                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");            // 建立实际的连接            connection.connect();            // 定义 BufferedReader输入流来读取URL的响应            in = new BufferedReader(new InputStreamReader(                    connection.getInputStream()));            String line;            while ((line = in.readLine()) != null) {                result += line;            }            List<Website> websiteList= ResultContent.ResultStringtoList(result);            System.out.println("数据获取成功-----正在初始化----");            for(int i=0;i<websiteList.size();i++){                map.put(websiteList.get(i).getKeynum(),websiteList.get(i).getCounts());            }            System.out.println(map);            System.out.println("计数线程初始化完毕");        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            System.out.println("请求初始化所需数据失败++");            e.printStackTrace();        }finally {            if (in != null) {                try {                    in.close();                } catch (IOException e) {                    e.printStackTrace();                }            }        }    }

【请求数据包含在url中】

public static void TimerUpdatemysql(Long counts,Long keynum){        //发送http请求获取用于初始化的数据        try {            System.out.println("正在更新数据库---");            String updateurl="http://localhost:1188/border/website/updatecounts?counts="+counts+"&keynum="+keynum;            System.out.println(updateurl);            URL url=new URL(updateurl);            // 打开和URL之间的连接            URLConnection connection = url.openConnection();            // 设置通用的请求属性            connection.setRequestProperty("accept", "*/*");            connection.setRequestProperty("connection", "Keep-Alive");            connection.setRequestProperty("user-agent",                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");            // 建立实际的连接            connection.connect();            System.out.println("数据已更新");        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            System.out.println("存储数据库失败++");            e.printStackTrace();        }    }

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