在java開發(fā)中，發(fā)起http請(qǐng)求是非常常見的需求，常用的有HttpClient，下面聊一下okhttp3的請(qǐng)求方式。
1、引入okhttp3依賴

		<dependency>
            <groupId>io.github.admin4j</groupId>
            <artifactId>http</artifactId>
            <version>0.4.0</version>
        </dependency>

2、提供springboot工程及http接口

@RestController
public class HelloController {

    /**
     * @description: get請(qǐng)求
     */
    @GetMapping("/hello")
    public String hello(@RequestParam String name) {
        return "hello," + name;
    }

    /**
     * @description: get請(qǐng)求
     */
    @GetMapping("hello2/{name}")
    public String hello2(@PathVariable("name") String name) {
        return "hello2," + name;
    }

    /**
     * @description: post請(qǐng)求
     */
    @PostMapping("hello3")
    public String hello3(@RequestBody Map map) {
        return map.get("name").toString();
    }

    /**
     * @description: form表單請(qǐng)求
     */
    @RequestMapping("hello4")
    public String hello4(@RequestParam Map map) {
        return map.get("name").toString();
    }

    /**
     * @description: post請(qǐng)求
     */
    @RequestMapping("hello5")
    public Object hello5(@RequestBody Map map) {
        return map;
    }
}

3、http請(qǐng)求

public class App {
    public static void main(String[] args) {
        System.out.println("Hello World!");
        // get
        //okhttp3.Response getResponse = HttpUtil.get("", Pair.of("", ""));
        JSONObject getResponse = HttpJsonUtil.get("http://localhost:8080/hello", Pair.of("name", "liubei"));
        System.out.println("get=" + getResponse);
        // post
        //okhttp3.Response postResponse = HttpUtil.post("", "");
        Map<String, Object> params = new HashMap<>(16);
        params.put("name", "admin");
        JSONObject postResponse = HttpJsonUtil.post("http://localhost:8080/hello3", params);
        System.out.println("post=" + postResponse);
        // form
        Map<String, Object> formParams = new HashMap<>(16);
        formParams.put("name", "sunquan");
        //okhttp3.Response formResponse = HttpUtil.postForm("", formParams);
        Object formResponse = HttpJsonUtil.postForm("http://localhost:8080/hello4", formParams);
        System.out.println("form=" + formResponse);

    }
}

4、請(qǐng)求結(jié)果
get請(qǐng)求

post請(qǐng)求

form表單請(qǐng)求

可見發(fā)起http請(qǐng)求還是挺方便的，感興趣的小伙伴可以試試~~~///(^v)\~~~文章來源地址http://www.zghlxwxcb.cn/news/detail-539743.html

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