org.apache.http.client.utils.URIBuilder#setParameters ( )源码实例Demo

/**
 * 发送get请求
 *
 * @param url
 * @param params
 * @param header
 * @return
 */
public static String sendGet(String url, Map<String, Object> params, Map<String, Object> header) {
    String result = null;
    try {
        URIBuilder builder = new URIBuilder(url);
        if (params != null && params.size() > 0) {
            List<NameValuePair> pairs = new ArrayList<>();
            for (Map.Entry<String, Object> entry : params.entrySet()) {
                pairs.add(new BasicNameValuePair(entry.getKey(), entry.getValue().toString()));
            }
            builder.setParameters(pairs);
        }
        HttpGet httpGet = new HttpGet(builder.build());
        setHeaders(header, httpGet);
        HttpResponse response = httpClient.execute(httpGet);
        result = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return result;
}
 

@VisibleForTesting
String canonicalizeUrl(String url) {
  //TODO visit target web page and get header:
  //   <link rel="canonical" href="https://blog.example.com/dresses/" />
  String cleaned = url.replaceAll("[\r\n \t]*", "");
  try {
    URI uri = new URI(cleaned);
    List<NameValuePair> params = URLEncodedUtils.parse(uri, Charsets.UTF_8);
    List<NameValuePair> cleanedParams = params.stream()
        .filter(pair -> !pair.getName().startsWith("utm_"))
        .sorted(Comparator.comparing(NameValuePair::getName)
            .thenComparing(NameValuePair::getValue))
        .collect(toList());
    URIBuilder uriBuilder = new URIBuilder(uri);
    if (cleanedParams.isEmpty()) {
      uriBuilder.clearParameters();
    } else {
      //set empty list will cause builder always append `?`
      uriBuilder.setParameters(cleanedParams);
    }
    return uriBuilder.build().toString();
  } catch (URISyntaxException e) {
    //ignore
  }
  return cleaned;
}
 

/**
 * 根据请求信息创建HttpRequestBase.
 *
 * @param cls     类型Class
 * @param url     URL
 * @param headers Http请求头信息列表
 * @param params  参数列表
 * @return HttpRequestBase
 */
protected HttpRequestBase createBase(final Class<? extends HttpRequestBase> cls, final String url, final Map<String, String> headers,
                                     final Map<String, String> params) {
    final URIBuilder builder = new URIBuilder();
    builder.setPath(url);

    final List<NameValuePair> pairs = covertParams2Nvps(params);
    builder.setParameters(pairs);

    try {
        final URI uri = builder.build();
        final HttpRequestBase base = ReflectUtils.newInstance(cls, uri);
        if (!CollectionUtils.isEmpty(headers)) {
            headers.forEach((key, value) -> base.addHeader(key, value));
        }

        return base;
    } catch (final Throwable e) {
        throw new HttpClientInvokeException(e.getMessage(), e);
    }
}
 

public static String get(String url, Map<String, Object> params) throws URISyntaxException {
    URIBuilder ub = new URIBuilder();
    ub.setPath(url);

    ArrayList<NameValuePair> pairs = covertParams2NVPS(params);
    ub.setParameters(pairs);

    HttpGet httpGet = new HttpGet(ub.build());
    return getResult(httpGet);
}
 

public static String get(String url, Map<String, Object> headers, Map<String, Object> params)
        throws URISyntaxException {
    URIBuilder ub = new URIBuilder();
    ub.setPath(url);

    ArrayList<NameValuePair> pairs = covertParams2NVPS(params);
    ub.setParameters(pairs);

    HttpGet httpGet = new HttpGet(ub.build());
    for (Map.Entry<String, Object> param : headers.entrySet()) {
        httpGet.addHeader(param.getKey(), String.valueOf(param.getValue()));
    }
    return getResult(httpGet);
}
 

public static String httpGetRequest(String url, Map<String, Object> params) throws URISyntaxException {
    URIBuilder ub = new URIBuilder();
    ub.setPath(url);

    ArrayList<NameValuePair> pairs = covertParams2NVPS(params);
    ub.setParameters(pairs);

    HttpGet httpGet = new HttpGet(ub.build());
    return getResult(httpGet);
}
 

public static String httpGetRequest(String url, Map<String, Object> headers,
                                    Map<String, Object> params) throws URISyntaxException {
    URIBuilder ub = new URIBuilder();
    ub.setPath(url);

    ArrayList<NameValuePair> pairs = covertParams2NVPS(params);
    ub.setParameters(pairs);

    HttpGet httpGet = new HttpGet(ub.build());
    for (Map.Entry<String, Object> param : headers.entrySet()) {
        httpGet.addHeader(param.getKey(), (String) param.getValue());
    }
    return getResult(httpGet);
}
 

public static String doGet(String url, Map<String, String> params) {
	Assert.hasLength(url, "请求地址为空");
	try {
		URIBuilder builder = new URIBuilder(url);
		builder.setParameters(getNameValuePair(params));
		HttpGet httpGet = new HttpGet(builder.toString());
		String result = execute(httpGet);
		return result;
	} catch (Exception e) {
		throw new ServiceException(e);
	}
}
 

public static String httpGetRequest(String url, Map<String, Object> params) throws URISyntaxException {
    URIBuilder ub = new URIBuilder();
    ub.setPath(url);

    ArrayList<NameValuePair> pairs = covertParams2NVPS(params);
    ub.setParameters(pairs);

    HttpGet httpGet = new HttpGet(ub.build());
    return getResult(httpGet);
}
 

public static String httpGetRequest(String url, Map<String, Object> headers, Map<String, Object> params)
        throws URISyntaxException {
    URIBuilder ub = new URIBuilder();
    ub.setPath(url);

    ArrayList<NameValuePair> pairs = covertParams2NVPS(params);
    ub.setParameters(pairs);

    HttpGet httpGet = new HttpGet(ub.build());
    for (Map.Entry<String, Object> param : headers.entrySet()) {
        httpGet.addHeader(param.getKey(), String.valueOf(param.getValue()));
    }
    return getResult(httpGet);
}
 

/**
 * 根据请求信息创建HttpRequestBase.
 *
 * @param cls    类型Class
 * @param url    URL
 * @param params 参数列表
 * @return HttpRequestBase
 */
protected HttpRequestBase createBase(final Class<? extends HttpRequestBase> cls, final String url, final Map<String, String> params) {
    final URIBuilder builder = new URIBuilder();
    builder.setPath(url);

    final List<NameValuePair> pairs = covertParams2Nvps(params);
    builder.setParameters(pairs);

    try {
        final URI uri = builder.build();
        return ReflectUtils.newInstance(cls, uri);
    } catch (final Throwable e) {
        throw new HttpClientInvokeException(e.getMessage(), e);
    }
}