Tool接口

依赖

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.jsoup</groupId>
            <artifactId>jsoup</artifactId>
            <version>1.13.1</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.73</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.18</version>
        </dependency>
    </dependencies>

代码

package com.xiaobai.demo.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.xiaobai.demo.entity.Article;
import com.xiaobai.demo.entity.HistoryToday;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

@RestController
@RequestMapping(value = "/api/",method = {RequestMethod.POST,RequestMethod.GET})
@CrossOrigin
public class BingController {
    /**
     * @Author xiaodingfeng
     * @Description 获取bing每日一图
     * @Date 13:28 2021/3/15
     **/
    @GetMapping("bing")
    @PostMapping("bing")
    public void getBingImage(HttpServletResponse response) throws IOException {
        String URL= "https://cn.bing.com";
        Document document = connection(URL);
        String url = document.selectFirst("#bgLink").attr("href");
        String title = document.selectFirst("#sh_cp").attr("title");
        response.sendRedirect(URL+url);
    }
    /**
     * @Author xiaodingfeng
     * @Description 获取随机暖心话语
     * @Date 13:25 2021/3/15
     **/
    @GetMapping("sweet")
    @PostMapping("sweet")
    public  String getSweet() throws IOException {
        String URL = "https://api.lovelive.tools/api/SweetNothings";
        return connection(URL).body().text();
    }

    /**
     * @Author xiaodingfeng
     * @Description 每日一文
     * @Date 13:44 2021/3/15
     **/
    @GetMapping("meiriyiwen")
    @PostMapping("meiriyiwen")
    public Article getMeiriyiwen() throws IOException {
        String URL= "https://meiriyiwen.com/";
        Document document = connection(URL);
        Element element = document.selectFirst("#article_show");
        String title = element.selectFirst("h1").text();
        String author = element.selectFirst("p.article_author").text();
        Element content = element.selectFirst("div.article_text");
        Article article = new Article(title, author, content.html(), content.text().length());
        return article;
    }

    /**
     * @Author xiaodingfeng
     * @Description 随机输出高清头像图片
     * @Date 14:05 2021/3/15
     **/
    @GetMapping("portrait")
    @PostMapping("portrait")
    public  String getPortrait(String type,String format,HttpServletResponse response) throws IOException {
        String URL = "https://api.66mz8.com/api/rand.portrait.php?type="+type+"&format="+format;
        String document = connection(URL).text();
        JSONObject jsonObject=JSONObject.parseObject(document);
        if (jsonObject!=null&&jsonObject.getString("code").equals("200"))
            response.sendRedirect(jsonObject.getString("pic_url"));
        return null;
    }

    /**
     * @Author xiaodingfeng
     * @Description 历史上的今天
     * @Date 15:52 2021/3/15
     **/
    @GetMapping("historytoday")
    @PostMapping("historytoday")
    public List<HistoryToday> getHistoryToday() throws IOException {
        String URL = "https://api.asilu.com/today";
        List<HistoryToday> list = new ArrayList<>();
        Document connection = connection(URL);
        JSONObject parse = JSONObject.parseObject(connection.text());
        JSONArray objects = JSONArray.parseArray(parse.getString("data"));
        for (int i = 0; i < objects.size(); i++) {
            JSONObject jsonObject = objects.getJSONObject(i);
            String year = jsonObject.getString("year");
            String title = jsonObject.getString("title");
            String link = jsonObject.getString("link");
            String type = jsonObject.getString("type");
            list.add(new HistoryToday(year,title,link,type));
        }
        return list;
    }

    /**
     * @Author xiaodingfeng
     * @Description json格式化
     * @Date 15:13 2021/3/15
     **/
    @GetMapping("stringtojson")
    @PostMapping("stringtojson")
    public String stringTojson(String str){
        System.out.println(str);
        JSONArray object = JSONArray.parseArray(str);
        String pretty = JSON.toJSONString(object, SerializerFeature.PrettyFormat, SerializerFeature.WriteMapNullValue,
                SerializerFeature.WriteDateUseDateFormat);
        return pretty;
    }

    /**
     * @Author xiaodingfeng
     * @Description 统一连接池
     * @Date 14:06 2021/3/15
     **/
    public static Document connection(String url) throws IOException {
        return Jsoup.connect(url).
                ignoreContentType(true)
                .userAgent("Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36")
                .timeout(5000)
                .get();
    }
}