Java调用第三方接口示范的实现

package com.njsc.credit.util;
 
import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
 
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
 
public class HttpClientUtil {
 
	/**
	 * 带参数的get请求
	 * @param url
	 * @param param
	 * @return String
	 */
	public static String doGet(String url, Map param) {
		// 创建Httpclient对象
		CloseableHttpClient httpclient = HttpClients.createDefault();
 
		String resultString = "";
		CloseableHttpResponse respOnse= null;
		try {
			// 创建uri
			URIBuilder builder = new URIBuilder(url);
			if (param != null) {
				for (String key : param.keySet()) {
					builder.addParameter(key, param.get(key));
				}
			}
			URI uri = builder.build();
			// 创建http GET请求
			HttpGet httpGet = new HttpGet(uri);
			// 执行请求
			respOnse= httpclient.execute(httpGet);
			// 判断返回状态是否为200
			if (response.getStatusLine().getStatusCode() == 200) {
				resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (response != null) {
					response.close();
				}
				httpclient.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return resultString;
	}
	
	/**
	 * 不带参数的get请求
	 * @param url
	 * @return String
	 */
	public static String doGet(String url) {
		return doGet(url, null);
	}
 
	/**
	 * 带参数的post请求
	 * @param url
	 * @param param
	 * @return String
	 */
	public static String doPost(String url, Map param) {
		// 创建Httpclient对象
		CloseableHttpClient httpClient = HttpClients.createDefault();
		CloseableHttpResponse respOnse= null;
		String resultString = "";
		try {
			// 创建Http Post请求
			HttpPost httpPost = new HttpPost(url);
			// 创建参数列表
			if (param != null) {
				List paramList = new ArrayList<>();
				for (String key : param.keySet()) {
					paramList.add(new BasicNameValuePair(key, param.get(key)));
				}
				// 模拟表单
				UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);
				httpPost.setEntity(entity);
			}
			// 执行http请求
			respOnse= httpClient.execute(httpPost);
			resultString = EntityUtils.toString(response.getEntity(), "utf-8");
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				response.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return resultString;
	}
 
	/**
	 * 不带参数的post请求
	 * @param url
	 * @return String
	 */
	public static String doPost(String url) {
		return doPost(url, null);
	}
	
	/**
	 * 传送json类型的post请求
	 * @param url
	 * @param json
	 * @return String
	 */
	public static String doPostJson(String url, String json) {
		// 创建Httpclient对象
		CloseableHttpClient httpClient = HttpClients.createDefault();
		CloseableHttpResponse respOnse= null;
		String resultString = "";
		try {
			// 创建Http Post请求
			HttpPost httpPost = new HttpPost(url);
			// 创建请求内容
			StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
			httpPost.setEntity(entity);
			// 执行http请求
			respOnse= httpClient.execute(httpPost);
			resultString = EntityUtils.toString(response.getEntity(), "utf-8");
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				response.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return resultString;
	}
}

/**
 * 聚合接口校验身份证
 * @param idCard
 * @param realName
 * @return boolean
 */
public boolean identityCheck(String idCard, String realName){
	logger.info("-----------------调用聚合数据 身份证验证API BEGIN--------------->");
	String key = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
	String url = "http://op.juhe.cn/idcard/query" + "&＃63;key=" + key + "&idcard=" + idCard + "&realname=" + realName;
	logger.info("请求url:" + url);
	boolean match = false; //是否匹配
	try {
		String result = HttpClientUtil.doGet(url);
		System.out.println("请求结果：" + result);
		IdentityCheckResult identityCheckResult = JsonUtils.parse(result, IdentityCheckResult.class);
		IdentityCheck identityCheck = JsonUtils.parse(result, "result", IdentityCheck.class);
		logger.info(identityCheckResult);
		logger.info(identityCheck.toString());
		if(identityCheckResult.correct() && identityCheck.getRes() == 1){
			match = true;
		}
	} catch (Exception e) {
		e.printStackTrace();
	}
	logger.info("<-----------------调用聚合数据 身份证验证API END---------------");
	return match;
}

package com.eqianxian.commons.utils.json;
 
import java.util.List;
import java.util.Map;
 
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.serializer.PropertyFilter;
import com.alibaba.fastjson.serializer.SerializerFeature;
 
/**
 * 在系统中统一使用这个，以方便将来切换不同的JSON生成工具
 * 
 * @author KelvinZ
 * 
 */
public class JsonUtils {
	public static final int TYPE_FASTJSON = 0;
	public static final int TYPE_GSON = 1;
 
	/**
	 * 
	 * 对象转化为json字符串
	 * 
	 * @param obj 待转化对象
	 * @return 代表该对象的Json字符串
	 */
	public static final String toJson(final Object obj) {
		return JSON.toJSONString(obj);
		// return gson.toJson(obj);
	}
 
	/**
	 * 
	 * 对象转化为json字符串
	 * 
	 * @param obj 待转化对象
	 * @return 代表该对象的Json字符串
	 */
	public static final String toJson(final Object obj, SerializerFeature... features) {
		return JSON.toJSONString(obj, features);
		// return gson.toJson(obj);
	}
 
	/**
	 * 对象转化为json字符串并格式化
	 * 
	 * @param obj
	 * @param format 是否要格式化
	 * @return
	 */
	public static final String toJson(final Object obj, final boolean format) {
		return JSON.toJSONString(obj, format);
	}
 
	/**
	 * 对象对指定字段进行过滤处理，生成json字符串
	 * 
	 * @param obj
	 * @param fields 过滤处理字段
	 * @param ignore true做忽略处理，false做包含处理
	 * @param features json特征，为null忽略
	 * @return
	 */
	public static final String toJson(final Object obj, final String[] fields, final boolean ignore,
			SerializerFeature... features) {
		if (fields == null || fields.length <1) {
			return toJson(obj);
		}
		if (features == null)
			features = new SerializerFeature[] { SerializerFeature.QuoteFieldNames };
		return JSON.toJSONString(obj, new PropertyFilter() {
			@Override
			public boolean apply(Object object, String name, Object value) {
				for (int i = 0; i 
	 * 解析json字符串中某路径的值
	 * 
	 * @param json
	 * @param path
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public static final  E parse(final String json, final String path) {
		String[] keys = path.split(",");
		JSONObject obj = JSON.parseObject(json);
		for (int i = 0; i 
	 * json字符串解析为对象
	 * 
	 * @param json 代表一个对象的Json字符串
	 * @param clazz 指定目标对象的类型，即返回对象的类型
	 * @return 从json字符串解析出来的对象
	 */
	public static final  T parse(final String json, final Class clazz) {
		return JSON.parseObject(json, clazz);
	}
 
	/**
	 * 
	 * json字符串解析为对象
	 * 
	 * @param json json字符串
	 * @param path 逗号分隔的json层次结构
	 * @param clazz 目标类
	 */
	public static final  T parse(final String json, final String path, final Class clazz) {
		String[] keys = path.split(",");
		JSONObject obj = JSON.parseObject(json);
		for (int i = 0; i  List parseArray(final Object obj, final String[] fields, boolean ignore,
			final Class clazz, final SerializerFeature... features) {
		String json = toJson(obj, fields, ignore, features);
		return parseArray(json, clazz);
	}
 
	/**
	 * 
	 * 从json字符串中解析出一个对象的集合，被解析字符串要求是合法的集合类型
	 * （形如:["k1":"v1","k2":"v2",..."kn":"vn"]）
	 * 
	 * @param json - [key-value-pair...]
	 * @param clazz
	 * @return
	 */
	public static final  List parseArray(final String json, final Class clazz) {
		return JSON.parseArray(json, clazz);
	}
 
	/**
	 * 
	 * 从json字符串中按照路径寻找，并解析出一个对象的集合，例如：
	 * 类Person有一个属性name，要从以下json中解析出其集合：
	 * {
	 * 	"page_info":{
	 * 		"items":{
	 * 			"item":[{"name":"KelvinZ"},{"name":"Jobs"},...{"name":"Gates"}]
	 * 	}
	 * }
	 * 使用方法：parseArray(json, "page_info,items,item", Person.class)，
	 * 将根据指定路径，正确的解析出所需集合，排除外层干扰
	 * 
	 * @param json json字符串
	 * @param path 逗号分隔的json层次结构
	 * @param clazz 目标类
	 * @return
	 */
	public static final  List parseArray(final String json, final String path, final Class clazz) {
		String[] keys = path.split(",");
		JSONObject obj = JSON.parseObject(json);
		for (int i = 0; i  ret = parseArray(inner, clazz);
		return ret;
	}
 
	/**
	 * 
	 * 有些json的常见格式错误这里可以处理，以便给后续的方法处理
	 * 常见错误：使用了\" 或者 "{ 或者 }"，腾讯的页面中常见这种格式
	 * 
	 * @param invalidJson 包含非法格式的json字符串
	 * @return
	 */
	public static final String correctJson(final String invalidJson) {
		String cOntent= invalidJson.replace("\\\"", "\"").replace("\"{", "{").replace("}\"", "}");
		return content;
	}
 
	/**
	 * 格式化Json
	 * 
	 * @param json
	 * @return
	 */
	public static final String formatJson(String json) {
		Map<&＃63;, &＃63;> map = (Map<&＃63;, &＃63;>) JSON.parse(json);
		return JSON.toJSONString(map, true);
	}
 
	/**
	 * 获取json串中的子json
	 * 
	 * @param json
	 * @param path
	 * @return
	 */
	public static final String getSubJson(String json, String path) {
		String[] keys = path.split(",");
		JSONObject obj = JSON.parseObject(json);
		for (int i = 0; i