OkHttpUtils.java
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package com.huaheng.control.management.utils;
import java.io.IOException;
import java.net.ConnectException;
import java.net.SocketTimeoutException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.TimeUnit;
import javax.validation.constraints.NotNull;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import cn.hutool.core.exceptions.ExceptionUtil;
import cn.hutool.core.util.StrUtil;
import okhttp3.ConnectionPool;
import okhttp3.Interceptor;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
/**
* OkHttp发送请求
* @author huaheng
* @Date 2022-5-30
*/
public class OkHttpUtils {
private static final Logger log = LoggerFactory.getLogger(OkHttpUtils.class);
/**
* JSON格式
*/
public static final MediaType MEDIA_TYPE_JSON = MediaType.parse("application/json; charset=utf-8");
/**
* 最多重试次数
*/
public final static int MAX_RENTRY_COUNT = 1;
/**
* 最大连接时间（秒）
*/
public final static int CONNECTION_TIMEOUT = 1;
/**
* 最大读取时间（秒）
*/
public final static int READ_TIMEOUT = 20;
/**
* 最大写入时间（秒）
*/
public final static int WRITE_TIMEOUT = 20;
/**
* OkHTTP线程池最大空闲线程数
*/
public final static int MAX_IDLE_CONNECTIONS = 200;
/**
* OkHTTP线程池空闲线程存活时间（秒）
*/
public final static long KEEP_ALIVE_DURATION = 60;
/**
* 最大读取时间（秒）
*/
public final static int READ_TIMEOUT_FAST = 5;
/**
* 最大写入时间（秒）
*/
public final static int WRITE_TIMEOUT_FAST = 5;
/**
* 最多重试次数
*/
public final static int MAX_RENTRY_COUNT_FAST = 0;
private static final String CONTENT_TYPE = "Content-Type";
/** 访问接口参数配置 */
private final static OkHttpClient HTTP_CLIENT =
new OkHttpClient.Builder().connectTimeout(CONNECTION_TIMEOUT, TimeUnit.SECONDS).readTimeout(READ_TIMEOUT, TimeUnit.SECONDS)
.writeTimeout(WRITE_TIMEOUT, TimeUnit.SECONDS).addInterceptor(new OkHttpUtils.OkhttpInterceptor(MAX_RENTRY_COUNT)) // 过滤器，设置最大重试次数
.retryOnConnectionFailure(false).connectionPool(new ConnectionPool(MAX_IDLE_CONNECTIONS, KEEP_ALIVE_DURATION, TimeUnit.SECONDS)).build();
/** 访问接口参数配置 */
private final static OkHttpClient HTTP_CLIENT_FAST =
new OkHttpClient.Builder().connectTimeout(CONNECTION_TIMEOUT, TimeUnit.SECONDS).readTimeout(READ_TIMEOUT_FAST, TimeUnit.SECONDS)
.writeTimeout(WRITE_TIMEOUT_FAST, TimeUnit.SECONDS).addInterceptor(new OkHttpUtils.OkhttpInterceptor(MAX_RENTRY_COUNT_FAST)) // 过滤器，设置最大重试次数
.retryOnConnectionFailure(false).connectionPool(new ConnectionPool(MAX_IDLE_CONNECTIONS, KEEP_ALIVE_DURATION, TimeUnit.SECONDS)).build();
/**
* 向指定 URL 发送GET方法的请求
* @param url 发送请求的 URL
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式
* @return 所代表远程资源的响应结果
* @throws Exception
*/
public static String sendGet(String url, String param) {
return sendGet(url, new HashMap<String, String>(), param);
}
/**
* 向指定 URL 发送GET方法的请求
* @param url 发送请求的 URL
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式
* @param headers 请求头
* @return 所代表远程资源的响应结果
* @throws Exception
*/
public static String sendGet(String url, Map<String, String> headers, String param) {
long requestTime = new Date().getTime();
Request.Builder builder = new Request.Builder();
buildHeader(builder, headers);
Request request = builder.url(url + "?" + param).get().build();
Response response = null;
String result = null;
try {
response = HTTP_CLIENT.newCall(request).execute();
result = response.body().string();
} catch (ConnectException e) {
String errorString = StrUtil.format("执行GET请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
} catch (SocketTimeoutException e) {
String errorString = StrUtil.format("执行GET请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
} catch (IOException e) {
String errorString = StrUtil.format("执行GET请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
} catch (Exception e) {
String errorString = StrUtil.format("执行GET请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
}
// 调用成功
if (response.isSuccessful() && Objects.nonNull(response.body())) {
log.info("执行GET请求成功，url: {}，result: {}", url, result);
} else {
String errorString = StrUtil.format("执行GET请求失败，url: {}，responseCode: {}，responseMessage: {}", url, response.code(), response.message());
throw new RuntimeException(errorString);
}
return result;
}
public static String sendPostByJsonStr(String url, String jsonString) {
return sendPostByJsonStr(url, new HashMap<String, String>(), jsonString);
}
/**
* JSONString形式发送POST请求
* @throws Exception
* @throws IOException
*/
public static String sendPostByJsonStr(String url, Map<String, String> headers, String jsonString) {
long requestTime = new Date().getTime();
String result = null;
if (StringUtils.isEmpty(url)) {
return result;
}
Request.Builder builder = new Request.Builder();
headers.put("Accept", "application/json");// 设置接收数据的格式
headers.put("Content-Type", "application/json");// 设置发送数据的格式
buildHeader(builder, headers);
@SuppressWarnings("deprecation")
RequestBody body = RequestBody.create(MEDIA_TYPE_JSON, jsonString);
Request request = builder.url(url).post(body).build();
Response response = null;
try {
response = HTTP_CLIENT.newCall(request).execute();
result = response.body().string();
} catch (ConnectException e) {
String errorString = StrUtil.format("执行POST请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
} catch (SocketTimeoutException e) {
String errorString = StrUtil.format("执行POST请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
} catch (IOException e) {
String errorString = StrUtil.format("执行POST请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
} catch (Exception e) {
String errorString = StrUtil.format("执行POST请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
}
// 调用成功
if (response.isSuccessful() && Objects.nonNull(response.body())) {
log.info("执行POST请求成功，url: {}，result: {}", url, result);
} else {
String errorString = StrUtil.format("执行POST请求失败，url: {}，responseCode: {}，responseMessage: {}", url, JSON.toJSONString(headers), jsonString,
response.code(), response.message());
throw new RuntimeException(errorString);
}
return result;
}
/**
* JSONString形式发送POST请求
* @throws Exception
* @throws IOException
*/
public static String sendPostByJsonStrFast(String url, Map<String, String> headers, String jsonString) {
long requestTime = new Date().getTime();
String result = null;
if (StringUtils.isEmpty(url)) {
return result;
}
Request.Builder builder = new Request.Builder();
headers.put("Accept", "application/json");// 设置接收数据的格式
headers.put("Content-Type", "application/json");// 设置发送数据的格式
buildHeader(builder, headers);
@SuppressWarnings("deprecation")
RequestBody body = RequestBody.create(MEDIA_TYPE_JSON, jsonString);
Request request = builder.url(url).post(body).build();
Response response = null;
try {
response = HTTP_CLIENT_FAST.newCall(request).execute();
result = response.body().string();
} catch (ConnectException e) {
String errorString = StrUtil.format("执行POST请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
} catch (SocketTimeoutException e) {
String errorString = StrUtil.format("执行POST请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
} catch (IOException e) {
String errorString = StrUtil.format("执行POST请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
} catch (Exception e) {
String errorString = StrUtil.format("执行POST请求异常，url: {}，执行耗时：{}ms，异常信息：{}", url, new Date().getTime() - requestTime, ExceptionUtil.getMessage(e));
log.error(errorString);
throw new RuntimeException(errorString, e);
}
// 调用成功
if (response.isSuccessful() && Objects.nonNull(response.body())) {
log.info("执行POST请求成功，url: {}，result: {}", url, result);
} else {
String errorString = StrUtil.format("执行POST请求失败，url: {}，responseCode: {}，responseMessage: {}", url, JSON.toJSONString(headers), jsonString,
response.code(), response.message());
throw new RuntimeException(errorString);
}
return result;
}
public static String sendPostByJsonStrFast(String url, String jsonString) {
return sendPostByJsonStrFast(url, new HashMap<String, String>(), jsonString);
}
/**
* 设置请求头
* @param builder .
* @param headers 请求头
*/
private static void buildHeader(Request.Builder builder, Map<String, String> headers) {
if (Objects.nonNull(headers) && headers.size() > 0) {
headers.forEach((k, v) -> {
if (Objects.nonNull(k) && Objects.nonNull(v)) {
builder.addHeader(k, v);
}
});
}
}
/**
* 支持嵌套泛型的POST请求
* @param url 链接
* @param json 请求json
* @param type 嵌套泛型
* @return 响应对象, 可进行强转。
* @throws Exception
*/
public static <T> T sendPostByJsonStr(String url, String jsonString, TypeReference<T> type) throws Exception {
String result = sendPostByJsonStr(url, jsonString);
if (Objects.nonNull(result) && Objects.nonNull(type)) {
return JSON.parseObject(result, type);
}
return null;
}
public static class OkhttpInterceptor implements Interceptor {
// 最大重试次数
private int maxRentry;
public OkhttpInterceptor(int maxRentry) {
this.maxRentry = maxRentry;
}
/** 递归 2次下发请求，如果仍然失败 则返回 null 但是 intercept must not return null. 返回 null 会报 IllegalStateException 异常 */
public Response intercept(@NotNull Chain chain) throws IOException {
return retry(chain, 0);
}
private Response retry(Chain chain, int retryCent) throws IOException {
Request request = chain.request();
Response response = null;
try {
response = chain.proceed(request);
} catch (Exception e) {
if (maxRentry > retryCent) {
return retry(chain, retryCent + 1);
}
if (Objects.isNull(response)) {
throw e;
}
}
return response;
}
}
}