HttpClient fluent-hc工具类使用指南

HttpClient - 工具 类  

使用 httpclient 提供的流式 jar 包:

<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>fluent-hc</artifactId>
</dependency>

FluentHttpClient

public class FluentHttpClient {

 final static PoolingHttpClientConnectionManager CONNMGR;
    final static HttpClient CLIENT;
    final static Executor executor;

    static {
        LayeredConnectionSocketFactory ssl = null;
        // 注释中有bug 
        //there also seems to have been a regression between 4.5.10 and 4.5.11 which was fixed in 4.5.12
        // Certificate for <域名> doesn't match any of the subject alternative names问题的解决
        //try {
        //    ssl = SSLConnectionSocketFactory.getSystemSocketFactory();
        //} catch (final SSLInitializationException ex) {
        //4.5.12之前用下面
        try {
            ssl = new SSLConnectionSocketFactory(SSLContexts.custom()
                    .loadTrustMaterial(null,new TrustSelfSignedStrategy()).build(),
                    NoopHostnameVerifier.INSTANCE);
        } catch (final SSLInitializationException | NoSuchAlgorithmException | KeyStoreException | KeyManagementException ex) {
            final SSLContext sslcontext;
            try {
                sslcontext = SSLContext.getInstance(SSLConnectionSocketFactory.TLS);
                sslcontext.init(null, null, null);
                ssl = new SSLConnectionSocketFactory(sslcontext);
            } catch (final Exception e) {
                throw new BizException(e.getMessage());
            }
        }

        final Registry<ConnectionSocketFactory> sfr = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", PlainConnectionSocketFactory.getSocketFactory())
                .register("https", ssl != null ? ssl : SSLConnectionSocketFactory.getSocketFactory())
                .build();

        CONNMGR = new PoolingHttpClientConnectionManager(sfr);
        CONNMGR.setDefaultMaxPerRoute(FluentHttpClient.getPoolMaxPerRoute());
        CONNMGR.setMaxTotal(FluentHttpClient.getPoolMaxTotal());
        //校验连接
        CONNMGR.setValidateAfterInactivity(FluentHttpClient.getValidateAfterInactivity());

        RequestConfig.Builder configBuilder = RequestConfig.custom();
        // 设置连接超时
        configBuilder.setConnectTimeout(FluentHttpClient.getConnectTimeout());
        // 设置读取超时
        configBuilder.setSocketTimeout(FluentHttpClient.getSocketTimeout());
        // 设置从连接池获取连接实例的超时
        configBuilder.setConnectionRequestTimeout(FluentHttpClient.getConnectTimeout());
        CLIENT = HttpClientBuilder.create()
                .setDefaultRequestConfig(configBuilder.build())
                .setConnectionManager(CONNMGR)
                .build();
        executor = Executor.newInstance(CLIENT);

    }


    /**
     * Request body = Request.Post(uri)
     * .socketTimeout(timeoutMills)
     * .connectTimeout(timeoutMills)
     * .body()
     *
     * @param request
     * @return
     * @throws IOException
     */
    public static Response execute(Request request) throws IOException {
        return executor.execute(request);
    }

    /**
     * GET 请求 构造 URI
     *
     * @param url
     * @param params
     * @return null if error !!
     */
    public static URI buildURI(String url, Map<String, String> params) {
        return buildURI(url, params, false, null);
    }

    /**
     * GET 请求构造 ENCODED URI
     *
     * @param url
     * @param params
     * @return null if error !!
     */
    public static URI buildEncodeURI(String url, Map<String, String> params) {
        return buildURI(url, params, true, "UTF-8");
    }

    public static URI buildURI(String url, Map<String, String> params, boolean encoded, String charset) {
        try {
            URIBuilder uriBuilder = null;
            if (encoded) {
                uriBuilder = new URIBuilder(url, Charset.forName(charset));
            } else {
                uriBuilder = new URIBuilder(url);
            }
            if (params != null) {
                Set<Map.Entry<String, String>> entrySet = params.entrySet();
                for (Map.Entry<String, String> entry : entrySet) {
                    uriBuilder.setParameter(entry.getKey(), entry.getValue());
                }
            }
            return uriBuilder.build();
        } catch (URISyntaxException e) {
            log.error("#### buildURI error: {}-{}-{}", url, params, e);
            return null;
        }
    }


    /**
     * POST encoded entity
     *
     * @param params
     * @return
     */
    public static UrlEncodedFormEntity buildFormEntity(Map<String, String> params) {
        return new UrlEncodedFormEntity(paramToPair(params), StandardCharsets.UTF_8);
    }


    public static List<NameValuePair> paramToPair(Map<String, String> params) {
        List<NameValuePair> result = Collections.emptyList();
        if (MapUtil.isNotEmpty(params)) {
            result = new ArrayList<>(params.size());
            for (Map.Entry<String, String> entry : params.entrySet()) {
                String value = entry.getValue();
                if (value != null) {
                    String key = entry.getKey();
                    result.add(new BasicNameValuePair(key, value));
                }
            }
        }
        return result;
    }

}

全局 配置

public class FluentGlobalConfig {

    /**
     * 超时全局 毫秒
     */
    protected static int connectTimeout = 6000;
    protected static int socketTimeout = 6000;


    /**
     * 连接池全局信息
     */
    protected static int poolMaxTotal = 200;
    protected static int poolMaxPerRoute = 100;
    protected static int validateAfterInactivity = 1000;

    public static int getConnectTimeout() {
        return connectTimeout;
    }

    /**
     * 设置连接时间
     *
     * @param timeout
     */
    public static void setConnectTimeout(int timeout) {
        connectTimeout = timeout;
    }

    public static int getSocketTimeout() {
        return socketTimeout;
    }

    /**
     * 设置 socket 时间
     *
     * @param timeout
     */
    public static void setSocketTimeout(int timeout) {
        socketTimeout = timeout;
    }

    public static int getPoolMaxTotal() {
        return poolMaxTotal;
    }

    /**
     * 设置连接池
     *
     * @param poolMaxTotal
     */
    public static void setPoolMaxTotal(int poolMaxTotal) {
        FluentGlobalConfig.poolMaxTotal = poolMaxTotal;
    }

    public static int getPoolMaxPerRoute() {
        return poolMaxPerRoute;
    }

    /**
     * 设置并发
     *
     * @param poolMaxPerRoute
     */
    public static void setPoolMaxPerRoute(int poolMaxPerRoute) {
        FluentGlobalConfig.poolMaxPerRoute = poolMaxPerRoute;
    }

    public static int getValidateAfterInactivity() {
        return validateAfterInactivity;
    }

    public static void setValidateAfterInactivity(int validateAfterInactivity) {
        FluentGlobalConfig.validateAfterInactivity = validateAfterInactivity;
    }
}

测试

测试用例

public class FluentTest {

    static {
        FluentGlobalConfig.setSocketTimeout(20000);
    }

    @Test
    public void get() throws IOException {
        Map<String,String> params = new HashMap<>();
        params.put("ts","21212");
        params.put("sig","heelo");
        Request get = Request.Get(FluentHttpClient.buildURI("http://localhost:8080/test/get/form",params));
        String s = FluentHttpClient.execute(get).returnContent().asString();
        System.out.println(s);
    }

    @Test
    public void postForm() throws IOException {
        Request request =
                Request.Post("http://localhost:8080/test/post/form")
                        .bodyForm(Form.form().add("sig","232")
                                .add("ts","34333")
                                .add("unifiedString","hello").build());
        String s = FluentHttpClient.execute(request).returnContent().asString();
        System.out.println(s);
    }
    @Test
    public void postJson() throws IOException {
        QueryDTO query = new QueryDTO();
        query.setSig("cccddd");
        query.setUnifiedString("hello me 1223");
        Request request = Request.Post("http://localhost:8080/test/post/json").bodyString(JSON.toJSONString(query),
                ContentType.APPLICATION_JSON);
        String s = FluentHttpClient.execute(request).returnContent().asString();
        System.out.println(s);
    }

}

测试 API:

@Slf4j
@RestController
public class TestController {

    @GetMapping("/test/get/form")
    public Mono<QueryDTO> getForm(QueryDTO query){
        log.info("request: {}", JSON.toJSONString(query));
        QueryDTO dto = new QueryDTO();
        dto.setSig("aaa");
        return Mono.just(dto);
    }

    @PostMapping("/test/post/form")
    public Mono<QueryDTO> postForm(QueryDTO query){
        log.info("request: {}", JSON.toJSONString(query));
        QueryDTO dto = new QueryDTO();
        dto.setSig("aaa");
        return Mono.just(dto);
    }

    @PostMapping("/test/post/json")
    public Mono<QueryDTO> postJson(@RequestBody QueryDTO query){
        log.info("request: {}", JSON.toJSONString(query));
        QueryDTO dto = new QueryDTO();
        dto.setSig("bbb");
        return Mono.just(dto);
    }
}

测试结果:

request: {"sig":"heelo","ts":21212}
request: {"sig":"232","ts":34333,"unifiedString":"hello"}
request: {"sig":"cccddd","unifiedString":"hello me 1223"}

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