JavaFX应用更新检测功能（在线自动更新方案）

package baosight.utils; import com.squareup.okhttp.*; import java.io.IOException; import java.net.URLEncoder; import java.util.Map; import java.util.concurrent.TimeUnit; public class OkHttpUtils { private static final OkHttpClient client = new OkHttpClient(); public static String get(String url) throws IOException { client.setConnectTimeout(1, TimeUnit.SECONDS); // 设置连接超时时间 client.setReadTimeout(3, TimeUnit.SECONDS); // 设置读取超时时间 Request request = new Request.Builder() .url(url) .build(); Response response = client.newCall(request).execute(); return response.body().string(); } public static String get(String url, Map<String, String> params) throws IOException { StringBuilder queryString = new StringBuilder(); for (Map.Entry<String, String> entry : params.entrySet()) { if (queryString.length() > 0) { queryString.append("&"); } queryString.append(URLEncoder.encode(entry.getKey(), "UTF-8")); queryString.append("="); queryString.append(URLEncoder.encode(entry.getValue(), "UTF-8")); } String fullUrl = url + "?" + queryString.toString(); Request request = new Request.Builder() .url(fullUrl) .build(); Response response = client.newCall(request).execute(); return response.body().string(); } public static String post(String url, String json) throws IOException { RequestBody body = RequestBody.create(MediaType.parse("application/json"), json); Request request = new Request.Builder() .url(url) .post(body) .build(); Response response = client.newCall(request).execute(); return response.body().string(); } public static String post(String url, Map<String, String> params) throws IOException { client.setConnectTimeout(3, TimeUnit.SECONDS); // 设置连接超时时间 client.setReadTimeout(3, TimeUnit.SECONDS); // 设置读取超时时间 FormEncodingBuilder formBody = new FormEncodingBuilder(); for (Map.Entry<String, String> entry : params.entrySet()) { formBody.add(entry.getKey(), entry.getValue()); } RequestBody body = formBody.build(); Request request = new Request.Builder() .url(url) .post(body) .build(); Response response = client.newCall(request).execute(); return response.body().string(); } }