[网络协议]java spring boot发送HTTP请求

在pom.xml添加以下依赖项 com.alibaba.fastjson

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.47</version>
</dependency>

直接上代码

	//post请求
	public static JSONObject sendPost(String url, Map<String, String> data, Map<String, String> headerData) {
        //header头信息
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
        for (Map.Entry<String, String> entry : headerData.entrySet()) {
            headers.add(entry.getKey(), entry.getValue());
        }
        //请求参数
        MultiValueMap<String, String> param = new LinkedMultiValueMap<>();
        param.setAll(data);
        //合并
        HttpEntity<MultiValueMap<String, String>> requestEntity = new HttpEntity<>(param, headers);
        //发送请求
        RestTemplate restTemplate = new RestTemplate();
        ResponseEntity<String> response = restTemplate.postForEntity(url, requestEntity, String.class);
        return JSONObject.parseObject(response.getBody());
    }



	//get请求
	public static JSONObject sendGet(String url,Map<String, String> data){
        //发送请求
        RestTemplate restTemplate = new RestTemplate();
        ResponseEntity<String> response = restTemplate.getForEntity(url,String.class,data);
        return JSONObject.parseObject(response.getBody());
    }