发送HTTP的POST请求调用第三方接口交互，传递必要的参数

最新推荐文章于 2022-10-13 16:02:32 发布

markyang088

最新推荐文章于 2022-10-13 16:02:32 发布

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该博客介绍了如何在项目中引入依赖，配置config.properties文件，并编写配置类来实现通过HTTP POST方法与第三方接口进行参数交互的详细步骤。

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首先引入依赖

   <!-- okhttp3 -->
        <dependency>
            <groupId>com.squareup.okhttp3</groupId>
            <artifactId>okhttp</artifactId>
            <version>3.2.0</version>
        </dependency>

配置一个路径配置文件config.properties

//3.2查询账务
config.getRoomBill = http://****自己的地址
//4.1查询会员信息
config.checkIfVip = http://****

写一个配置类：

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;

/**
 * @Auther:
 * @Date: 2018/12/18 20:55
 * @Description:省略getset方法
 */
@Configuration
@PropertySource(value = "classpath:config/config.properties")
public class ConfigPath {
    //1.1
    @Value("${config.getRoomType}")
    private String getRoomType;
    //1.2
    @Value("${config.getRoomInfo}")

具体调用过程：

具体调用方法因人而异
String url1 = configPath.getxxx();
            JSONObject map1 = new JSONObject();
            map1.put("pmsTypeId", xxx.getxxx());
            map1.put("hotelCode", xxx.getxxx());
            map1.put("roomNo", xxx.getxxx());
            map1.put("orderCode", xxx.getxxx());
str1 = OkHttpUtil.doPostHttpRequest(url1, map1.toString());

负责发送postHTTP请求的配置：

package com.chinahotelhelp.shm.businessmanagement.tools;


import com.squareup.okhttp.*;

import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

/**
 * @Auther:
 * @Date: 2018/12/14 11:47
 * @Description:
 */
public class OkHttpUtil {
    private static final OkHttpClient client = new OkHttpClient();
    public static final MediaType JSON = MediaType
            .parse("application/json; charset=utf-8");
    private static final MediaType MEDIA_TYPE_PNG = MediaType
            .parse("image/png;charset=utf-8");
    private static final MediaType MEDIA_TYPE_MARKDOWN = MediaType
            .parse("text/x-markdown; charset=utf-8");
    static {
        client.setConnectTimeout(30, TimeUnit.SECONDS);
    }

    /**
     * 不会开启异步线程。
     *
     * @param request
     * @return
     * @throws IOException
     */
    public static Response execute(Request request) throws IOException {
        return client.newCall(request).execute();
    }

    /**
     * 开启异步线程访问网络
     *
     * @param request
     * @param responseCallback
     */
    public static void enqueue(Request request, Callback responseCallback) {
        client.newCall(request).enqueue(responseCallback);
    }

    /**
     * 根据url地址获取数据
     *
     * @param url
     * @return
     * @throws IOException
     */
    public static String doGetHttpRequest(String url) throws IOException {
        Request request = new Request.Builder().url(url).build();
        Response response = client.newCall(request).execute();
        if (!response.isSuccessful()) {

            throw new IOException("Unexpected code " + response);
        }
        return response.body().string();
    }

    /**
     * 根据url地址和json数据获取数据
     *
     * @param url
     * @param json
     * @return
     * @throws IOException
     */
    public static String doPostHttpRequest(String url, String json)
            throws IOException {
        Request request = new Request.Builder().url(url)
                .post(RequestBody.create(JSON, json)).build();

        Response response = client.newCall(request).execute();
        if (!response.isSuccessful()) {

            throw new IOException("Unexpected code " + response);
        }
        return response.body().string();
    }

    /**
     * 根据url地址和json数据获取数据
     *
     * @param url
     * @param json
     * @return
     * @throws IOException
     */
    public static String doPostHttpRequest2(String url, String json)
            throws IOException {
        MediaType mediaType = MediaType.parse("application/json");
        RequestBody body = RequestBody.create(mediaType, json);
        Request request = new Request.Builder().url(url).post(body)
                .addHeader("content-type", "application/json").build();

        Response response = client.newCall(request).execute();
        if (!response.isSuccessful()) {

            throw new IOException("Unexpected code " + response);
        }
        return response.body().string();
    }

    public static String doPostImgHttpRequest(String url, File file)
            throws IOException {
        RequestBody requestBody = new MultipartBuilder()
                .type(MultipartBuilder.FORM)
                .addFormDataPart("buffer", file.getName(),
                        RequestBody.create(MEDIA_TYPE_PNG, file)).build();
        Request request = new Request.Builder().url(url).post(requestBody)
                .build();
        Response response = client.newCall(request).execute();
        if (!response.isSuccessful()) {

            throw new IOException("Unexpected code " + response);
        }
        return response.body().string();
    }
}