記錄一下單元測試中使用的http工具類，一般只需要留意路徑、請求體、請求頭。至少目前遇到的是這樣。

GetMapping沒有請求體，傳參的話直接用用?和&連線寫在請求路徑裡，例如"?id=10086&age=22"

PostMapping有請求體，以JSON格式傳遞的

1.路徑

例如，[ http://localhost:8080 ]，這是基本路徑，一般在公共接口裡定義。後續的RequestMapping和GetMapping等具體路徑在測試方法裡自行拼接。

2.請求頭一般攜帶金鑰，一般在公共接口裡定義，其他測試類直接實現獲取請求頭。

import java.util.HashMap;
 
import java.util.Map;

public interface TestBase {
    //String IP = "10.8.45.120";
    String IP = "localhost";
    int PORT = 8103;
    String BAST_PATH = "http://" + IP + ":" + (PORT);

    //預設的金鑰
    String AUTHORIZATION = "Basic c2FiZXI6c2FV0";
    String SCC_AUTH = "bearer eyJ0eXAiOiJKc29uV2ViVG9rZ";

    
 
default Map<String, String> getHead() {
        Map<String, String> head = new HashMap<>();
        head.put("authorization", AUTHORIZATION);
        head.put("scc-auth", SCC_AUTH);
        return head;
    }
}

3.封裝get請求和post請求於一個工具類

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.MapUtils;
 
import org.apache.http.HttpEntity;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.client.RestTemplate;

import java.io.IOException;
import java.util.Map;

/**
 * http 請求工具類
 */
@Slf4j
public final class HttpRequestUtils {
    //設定字元編碼
    private static final String CHARSET = "UTF-8";

    private static RequestConfig defaultRequestConfig = RequestConfig
        .custom()
        //設定等待資料超時時間
        .setSocketTimeout(30000)
        //設定連線超時時間
        .setConnectTimeout(30000)
        //設定從連線池獲取連線的等待超時時間
        .setConnectionRequestTimeout(30000)
        //.setStaleConnectionCheckEnabled(true)
        .build();

    //釋放資源，httpResponse為響應流，httpClient為請求客戶端
    private static void release(CloseableHttpResponse httpResponse, CloseableHttpClient httpClient) throws IOException {
        if (httpResponse != null) {
            httpResponse.close();
        }
        if (httpClient != null) {
            httpClient.close();
        }
    }

    //get請求帶引數、帶請求頭
    public static String get(String urlWithParams, Map<String, String> header) throws IOException {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpGet httpget = new HttpGet(urlWithParams);
        if (!MapUtils.isEmpty(header)) {
            header.forEach(httpget::addHeader);
        }
        CloseableHttpResponse response = httpClient.execute(httpget);
        HttpEntity entity = response.getEntity();
        String result = EntityUtils.toString(entity, CHARSET);
        httpget.releaseConnection();
        release(response, httpClient);
        return result;
    }

    public static String get(String urlWithParams) throws IOException {
        return get(urlWithParams, null);
    }

    //傳送post請求，帶json請求體和請求頭
    public static String postJson(String url, String json, Map<String, String> headersMap) {
        RestTemplate restTemplate = new RestTemplate();
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON);

        for (Map.Entry<String, String> entry : headersMap.entrySet()) {
            headers.add(entry.getKey(),entry.getValue());
        }
        org.springframework.http.HttpEntity<String> request = new org.springframework.http.HttpEntity<>(json, headers);
        ResponseEntity<String> response = restTemplate.postForEntity(url, request, String.class);
        return response.getBody();
    }

}

4.單元測試

import org.junit.jupiter.api.Test;

import java.io.IOException;

public class GoodsCategoryMapperTest implements TestBase{
    private static final String PRE = BAST_PATH + "/goodsCategory";

    @Test
    public void test1() throws IOException {
        String url = "/getGoodsCategory?category_id=29";
        String s = HttpRequestUtils.get(PRE + url, getHead());
        System.out.println(s);
    }

    @Test
    public void test2() throws IOException {
        String url = "/getGoodsCategoryListInfo?page_index=1&page_size=10";
        String params = "{\n" +
            "    \"brandId\":\"1000000005\"\n" +
            "}";
        String s = HttpRequestUtils.postJson(PRE + url, params, getHead());
        System.out.println(s);
    }
}

5.執行截圖