pecl install qqwry-beta
qqwry 你值得拥有。
IP其实并非是胡乱划分的。有心的话，你会发现。IP段和所在的地区是紧密结合的。你的隔壁城市和你的城市的IP可能为连续的。

java 后端请求第三方接口 包含 post 请求和 get 请求

public class HttpRequest {
    private static boolean debug = true;

　　//get请求
    public static String sendGet(String url, String param) {
        if (!debug) {
            return "";
        }
        String result = "";
        BufferedReader in = null;
        try {
            String urlNameString = url + "?" + param;
            URL realUrl = new URL(urlNameString);

            URLConnection connection = realUrl.openConnection();

            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");

            connection.connect();

            Map<String, List<String>> map = connection.getHeaderFields();

            for (String key : map.keySet()) {
                System.out.println(key + "--->" + map.get(key));
            }

            in = new BufferedReader(new InputStreamReader(
                    connection.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("异常" + e);
            e.printStackTrace();
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }
// [post请求]
    public static String sendPost(String url, String param) {
        if (!debug) {
            return "";
        }
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            URLConnection conn = realUrl.openConnection();
            conn.setRequestProperty("Content-Type", "application/json");
            conn.setRequestProperty("charset", "utf-8");
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            conn.setDoOutput(true);
            conn.setDoInput(true); 
            out = new PrintWriter(new OutputStreamWriter(conn.getOutputStream(), "utf-8"));
            out.print(param);
            out.flush();
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            System.out.println("sendPost"+result);
        } catch (Exception e) {
            System.out.println("异常" + e);
            e.printStackTrace();
        } finally {
            try {
                if (out != null) {
                    out.close();
                }
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result;
    }
}

http请求测试工具类，请将请求地址，参数填写在main函数内

Java 调用第三方接口

Java调用第三方接口—最简单的两种方式

一、通过JDK网络类Java.net.HttpURLConnection

1.引入依赖org.json.JSONObject

post传递参数将实体类转换为json时使用

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    
    <groupId>com.daylight</groupId>
    <artifactId>demo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <dependencies>
 
        <!-- https://mvnrepository.com/artifact/org.json/json -->
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20211205</version>
        </dependency>
    </dependencies>
    </project>

2.HttpClientUtil工具类

import com.daylight.modules.personInfo.PersonInfo;
import org.json.JSONObject;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * 功能描述： 概述：调用第三方接口
 * 创  建 人： bailangtao
 */

public class HttpClientUtil {

    public static void main(String[] args) throws IOException {
        //get方式调用第三方接口
        String getResult = doGet("https://www.baidu.com/sugrec?prod=pc_his&from=pc_web&json=1&sid=26350&hisdata=%5B%7B%22time%22%3A1661327756%2C%22kw%22%3A%22csdn%22%7D%2C%7B%22time%22%3A1661329559%2C%22kw%22%3A%22java%20%E5%B0%86%E5%AF%B9%E8%B1%A1%E8%BD%AC%E6%8D%A2%E4%B8%BAjson%22%7D%2C%7B%22time%22%3A1661330679%2C%22kw%22%3A%22%E7%BD%91%E7%BB%9C%E6%96%87%E6%98%8E%E6%B4%BB%E5%8A%A8%22%2C%22fq%22%3A2%7D%2C%7B%22time%22%3A1661330777%2C%22kw%22%3A%22%E7%BD%91%E6%98%93%E9%82%AE%E7%AE%B1%22%7D%2C%7B%22time%22%3A1661330816%2C%22kw%22%3A%22%E7%BD%91%E6%98%93%E9%82%AE%E7%AE%B1%E6%8E%A5%E5%8F%A3%22%7D%2C%7B%22time%22%3A1661330823%2C%22kw%22%3A%22%E6%8E%A5%E5%8F%A3%22%7D%2C%7B%22time%22%3A1661330840%2C%22kw%22%3A%22api%E6%8E%A5%E5%8F%A3%E5%BC%80%E6%94%BE%E5%B9%B3%E5%8F%B0%22%7D%2C%7B%22time%22%3A1661330938%2C%22kw%22%3A%22api%E6%8E%A5%E5%8F%A3%E5%BC%80%E6%94%BE%E5%B9%B3%E5%8F%B0%E5%BC%80%E6%BA%90%E9%A1%B9%E7%9B%AE%22%7D%2C%7B%22time%22%3A1661330966%2C%22kw%22%3A%22%E7%99%BE%E5%BA%A6%E6%96%B0%E9%97%BBapi%E5%BC%80%E6%94%BE%E6%8E%A5%E5%8F%A3%22%7D%2C%7B%22time%22%3A1661331116%2C%22kw%22%3A%22%E5%A4%A9%E6%B0%94%E9%A2%84%E6%8A%A5%22%2C%22fq%22%3A2%7D%5D&_t=1661331115730&req=2&bs=%E5%A4%A9%E6%B0%94%E9%A2%84%E6%8A%A5&csor=0");
        System.out.println("getResult:"+getResult); //打印天气预报内容

        //post方式调用第三方接口
        //封装传递的参数
        PersonInfo personInfo = new PersonInfo();
        personInfo.setName("blt");
        personInfo.setPhone("15611111111");
        //把对象转换为json格式
        JSONObject object = new JSONObject(personInfo);
        String data = object.toString();
        String postResult = doPost("https://ug.baidu.com/mcp/pc/pcsearch",data);
        System.out.println("postResult:"+postResult);
    }
    /**
     * 以post方式调用对方接口方法
     */
    public static String doPost(String pathUrl,String data){
        OutputStreamWriter out = null;
        BufferedReader br = null;
        String result = "";
        try {
            //获取统一资源定位器（java.net.URL）
            URL url = new URL(pathUrl);
            //获取连接器（java.net.URLConnection）打开和url之间的连接
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            //设定请求的方法为"POST"，默认是GET
            //post与get的不同之处在于post的参数不是放在URL字串里面，而是放在http请求的正文内。
            conn.setRequestMethod("POST");
            //设置30秒连接超时
            conn.setConnectTimeout(30000);
            //设置30秒读取超时
            conn.setReadTimeout(30000);
            // 设置是否向httpUrlConnection输出，因为这个是post请求，参数要放在http正文内，因此需要设为true, 默认情况下是false;
            conn.setDoOutput(true);
            // 设置是否从httpUrlConnection读入，默认情况下是true;
            conn.setDoInput(true);
            // Post请求不能使用缓存
            conn.setUseCaches(false);
            //设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");  //维持长链接
            conn.setRequestProperty("Content-Type", "application/json;charset=utf-8");
            //连接，从上述url.openConnection()至此的配置必须要在connect之前完成，
            conn.connect();

            /**
             * 调用第三方http接口
             */
            //获取URLConnection对象对应的输出流
            //1、此处getoutputStream会隐含的进行connect(即：如同调用上面的connect()方法，所以在开发中不调用上述的connect()也可以)。
            out = new OutputStreamWriter(conn.getoutputStream(), "UTF-8");
            //2、设置请求的参数
            out.write(data);
            //3、flush输出流的缓冲
            out.flush();

            /**
             * 获取调用第三方http接口后返回的结果
             */
            //获取URLConnection对象对应的输入流，以输入流的形式获取返回内容。
            InputStream is = conn.getInputStream();
            //构造一个字符流缓存
            br = new BufferedReader(new InputStreamReader(is));
            String str = "";
            while ((str = br.readLine()) != null){
                result += str;
            }
            System.out.println(result);
            //关闭流
            is.close();
            //断开连接，disconnect是在底层tcp socket链接空闲时才切断，如果正在被其他线程使用就不切断。
            conn.disconnect();

        } catch (Exception e) {
            e.printstacktrace();
        }finally {
            try {
                if (out != null){
                    out.close();
                }
                if (br != null){
                    br.close();
                }
            } catch (IOException e) {
                e.printstacktrace();
            }
        }
        return result;
    }

    /**
     * 以get方式调用对方接口方法
     */
    public static String doGet(String pathUrl){
        BufferedReader br = null;
        String result = "";
        try {
            URL url = new URL(pathUrl);
            //打开和url之间的连接
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            //设定请求的方法为"GET"，默认是GET
            //post与get的不同之处在于post的参数不是放在URL字串里面，而是放在http请求的正文内。
            conn.setRequestMethod("GET");
            //设置30秒连接超时
            conn.setConnectTimeout(30000);
            //设置30秒读取超时
            conn.setReadTimeout(30000);
            // 设置是否向httpUrlConnection输出，因为这个是post请求，参数要放在http正文内，因此需要设为true, 默认情况下是false;
            conn.setDoOutput(true);
            // 设置是否从httpUrlConnection读入，默认情况下是true;
            conn.setDoInput(true);
            // Post请求不能使用缓存(get可以不使用)
            conn.setUseCaches(false);
            //设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");  //维持长链接
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
            //连接，从上述url.openConnection()至此的配置必须要在connect之前完成，
            conn.connect();
            /**
             * 获取调用第三方http接口后返回的结果
             */
            //获取URLConnection对象对应的输入流
            InputStream is = conn.getInputStream();
            //构造一个字符流缓存
            br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            String str = "";
            while ((str = br.readLine()) != null){
                result += str;
            }
            System.out.println(result);
            //关闭流
            is.close();
            //断开连接，disconnect是在底层tcp socket链接空闲时才切断，如果正在被其他线程使用就不切断。
            conn.disconnect();
        } catch (Exception e) {
            e.printstacktrace();
        }finally {
            try {
                if (br != null){
                    br.close();
                }
            } catch (IOException e) {
                e.printstacktrace();
            }
        }
        return result;
    }
}

运行此代码会产生以下结果：

getResult:{“q”:“”,“p”:false,“bs”:“”,“csor”:“0”,“err_no”:0,“errmsg”:“”,“g”:[{“type”:“his_normal”,“sa”:“h_1”,“q”:“天气预报”},{“type”:“his_normal”,“sa”:“h_2”,“q”:“百度新闻api开放接口”},{“type”:“his_normal”,“sa”:“h_3”,“q”:“api接口开放平台开源项目”},{“type”:“his_normal”,“sa”:“h_4”,“q”:“api接口开放平台”},{“type”:“his_normal”,“sa”:“h_5”,“q”:“接口”},{“type”:“his_normal”,“sa”:“h_6”,“q”:“网易邮箱接口”},{“type”:“his_normal”,“sa”:“h_7”,“q”:“网易邮箱”},{“type”:“his_normal”,“sa”:“h_8”,“q”:“网络文明活动”},{“type”:“his_normal”,“sa”:“h_9”,“q”:“java 将对象转换为json”},{“type”:“his_normal”,“sa”:“h_10”,“q”:“csdn”}],“queryid”:“0x4b73a46d385ddb”}
postResult:{“errno”:0,“errmsg”:“ok”,“IsPrint”:false,“data”:{“log_id”:“8951333740449745415”,“action_rule”:{}}}

二、通过Apache common封装好的HttpClient

1.引入依赖org.json.JSONObject

post传递参数将实体类转换为json时使用

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.daylight</groupId>
    <artifactId>demo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <dependencies>

        <!--HttpClient-->
        <dependency>
            <groupId>commons-httpclient</groupId>
            <artifactId>commons-httpclient</artifactId>
            <version>3.1</version>
        </dependency>
        <!--json-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.45</version>
        </dependency>
  </dependencies>
</project>

2.HttpClientUtil工具类

import org.apache.commons.httpclient.*;
import org.apache.commons.httpclient.methods.getmethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.StringRequestEntity;
import org.apache.commons.httpclient.params.HttpMethodParams;

import java.io.*;

/**
 * 功能描述： 概述：调用第三方接口
 * 创  建 人： bailangtao
 * 版      本： 1.0.0
 */

public class HttpClientUtil2 {

    public static void main(String[] args) throws IOException {
        //get方式调用第三方接口
        String getResult = doGet("https://www.baidu.com/sugrec?prod=pc_his&from=pc_web&json=1&sid=26350&hisdata=%5B%7B%22time%22%3A1661327756%2C%22kw%22%3A%22csdn%22%7D%2C%7B%22time%22%3A1661329559%2C%22kw%22%3A%22java%20%E5%B0%86%E5%AF%B9%E8%B1%A1%E8%BD%AC%E6%8D%A2%E4%B8%BAjson%22%7D%2C%7B%22time%22%3A1661330679%2C%22kw%22%3A%22%E7%BD%91%E7%BB%9C%E6%96%87%E6%98%8E%E6%B4%BB%E5%8A%A8%22%2C%22fq%22%3A2%7D%2C%7B%22time%22%3A1661330777%2C%22kw%22%3A%22%E7%BD%91%E6%98%93%E9%82%AE%E7%AE%B1%22%7D%2C%7B%22time%22%3A1661330816%2C%22kw%22%3A%22%E7%BD%91%E6%98%93%E9%82%AE%E7%AE%B1%E6%8E%A5%E5%8F%A3%22%7D%2C%7B%22time%22%3A1661330823%2C%22kw%22%3A%22%E6%8E%A5%E5%8F%A3%22%7D%2C%7B%22time%22%3A1661330840%2C%22kw%22%3A%22api%E6%8E%A5%E5%8F%A3%E5%BC%80%E6%94%BE%E5%B9%B3%E5%8F%B0%22%7D%2C%7B%22time%22%3A1661330938%2C%22kw%22%3A%22api%E6%8E%A5%E5%8F%A3%E5%BC%80%E6%94%BE%E5%B9%B3%E5%8F%B0%E5%BC%80%E6%BA%90%E9%A1%B9%E7%9B%AE%22%7D%2C%7B%22time%22%3A1661330966%2C%22kw%22%3A%22%E7%99%BE%E5%BA%A6%E6%96%B0%E9%97%BBapi%E5%BC%80%E6%94%BE%E6%8E%A5%E5%8F%A3%22%7D%2C%7B%22time%22%3A1661331116%2C%22kw%22%3A%22%E5%A4%A9%E6%B0%94%E9%A2%84%E6%8A%A5%22%2C%22fq%22%3A2%7D%5D&_t=1661331115730&req=2&bs=%E5%A4%A9%E6%B0%94%E9%A2%84%E6%8A%A5&csor=0");
        System.out.println("getResult:"+getResult); //打印天气预报内容

        //post方式调用第三方接口
        String postResult = doPost("https://ug.baidu.com/mcp/pc/pcsearch");
        System.out.println("postResult:"+postResult);
    }
    /**
     * 以post方式调用对方接口方法
     */
    public static String doPost(String pathUrl){

        HttpClient httpClient = new HttpClient();
        PostMethod postMethod = new PostMethod(pathUrl);

        postMethod.addRequestHeader("accept", "*/*");
        postMethod.addRequestHeader("connection", "Keep-Alive");
        //设置json格式传送
        postMethod.addRequestHeader("Content-Type", "application/json;charset=utf-8");
        //必须设置下面这个Header
        postMethod.addRequestHeader("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.81 Safari/537.36");

        //请求时在头信息中设置token如不需要可删除
        postMethod.addRequestHeader("token", "95e5s57db4df45hyj8a5h6g");

        //添加请求参数
        com.alibaba.fastjson.JSONObject jsonObject1 = new com.alibaba.fastjson.JSONObject();
        jsonObject1.put("deviceNo","62gr5z8hnr18f5sn8n4");
        jsonObject1.put("type","1");
        //postMethod.addParameter("param", json.getString("param"));
//		StringRequestEntity param = new StringRequestEntity(json.getString("param"));
//		postMethod.setRequestEntity(param);
        String data = jsonObject1.toString();
        StringRequestEntity param = null;
        try {
            param = new StringRequestEntity(data,"application/json","UTF-8");
        } catch (UnsupportedEncodingException e) {
            e.printstacktrace();
        }
        postMethod.setRequestEntity(param);

        String res = "";
        try {
            int code = httpClient.executeMethod(postMethod);
            if (code == 200){
                byte[] responseBody = postMethod.getResponseBody();
                res = new String(responseBody, "UTF-8");
                //res = postMethod.getResponseBodyAsstring();
                System.out.println("res:"+res);
            }
        } catch (IOException e) {
            e.printstacktrace();
        }
        return res;
    }

    /**
     * 以get方式调用对方接口方法
     */
    public static String doGet(String pathUrl){

        //1.生成HttpClient对象并设置参数
        HttpClient httpClient = new HttpClient();
        //设置Http连接超时为5秒
        httpClient.gethttpconnectionManager().getParams().setConnectionTimeout(5000);
        //2.生成getmethod对象并设置参数
        getmethod getmethod = new getmethod(pathUrl);
        //设置get请求超时为5秒
        getmethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 5000);
        //设置请求重试处理，用的是默认的重试处理：请求三次
        getmethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler());

        String response = "";
        //3.执行HTTP GET 请求
        try {
            int statusCode = httpClient.executeMethod(getmethod);
            //4.判断访问的状态码
            if (statusCode != 200){
                System.err.println("请求出错：" + getmethod.getStatusLine());
            }
            //5.处理HTTP响应内容
            //HTTP响应头部信息，这里简单打印
            Header[] headers = getmethod.getResponseHeaders();
            for (Header h: headers){
                System.out.println(h.getName() + "------" + h.getValue());
            }
            //读取HTTP响应内容，这里简单打印网页内容
            //读取为字节数组
            byte[] responseBody = getmethod.getResponseBody();
            response = new String(responseBody, "UTF-8");
            System.out.println("response:" + response);
            //读取为InputStream，在网页内容数据量大时候推荐使用
            //InputStream response = getmethod.getResponseBodyAsstream();

        } catch (HttpException e) {
            //发生致命的异常，可能是协议不对或者返回的内容有问题
            System.out.println("请检查输入的URL!");
            e.printstacktrace();
        } catch (IOException e){
            //发生网络异常
            System.out.println("发生网络异常!");
        }finally {
            //6.释放连接
            getmethod.releaseConnection();
        }
        return response;

    }
}

运行此代码会产生以下结果：

getResult:{“q”:“”,“p”:false,“bs”:“”,“csor”:“0”,“err_no”:0,“errmsg”:“”,“g”:[{“type”:“his_normal”,“sa”:“h_1”,“q”:“天气预报”},{“type”:“his_normal”,“sa”:“h_2”,“q”:“百度新闻api开放接口”},{“type”:“his_normal”,“sa”:“h_3”,“q”:“api接口开放平台开源项目”},{“type”:“his_normal”,“sa”:“h_4”,“q”:“api接口开放平台”},{“type”:“his_normal”,“sa”:“h_5”,“q”:“接口”},{“type”:“his_normal”,“sa”:“h_6”,“q”:“网易邮箱接口”},{“type”:“his_normal”,“sa”:“h_7”,“q”:“网易邮箱”},{“type”:“his_normal”,“sa”:“h_8”,“q”:“网络文明活动”},{“type”:“his_normal”,“sa”:“h_9”,“q”:“java 将对象转换为json”},{“type”:“his_normal”,“sa”:“h_10”,“q”:“csdn”}],“queryid”:“0x4b73a46d385ddb”}
postResult:{“errno”:0,“errmsg”:“ok”,“IsPrint”:false,“data”:{“log_id”:“8951333740449745415”,“action_rule”:{}}}

我们今天的关于PHP Tcp请求第三方接口和php对接第三方接口的分享就到这里，谢谢您的阅读，如果想了解更多关于Ajax 跨域问题，请求第三方接口数据，求助！急急！、http - php有没有不使用第三方接口的情况下根据ip地址获取地理位置的方法？(第三方接口他们是通过什么原理实现这一功能的？)、java 后端请求第三方接口 包含 post 请求和 get 请求、Java 调用第三方接口的相关信息，可以在本站进行搜索。