investVote_JAVA/src/main/java/com/lh/until/Utils.java

package com.lh.until;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.lh.bean.dto.TokenDTO;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

@Slf4j
@Component
public class Utils {
    @Resource
    private StringRedisTemplate stringRedisTemplate;
    // 获取token中的信息
    public TokenDTO analysisToken(String token) throws IOException {
        // 编码Token
        String url = "http://39.101.133.168:8828/hljw/api/v2/member/info";
        // 创建HttpClient实例
        try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
            // 创建POST请求
            HttpPost postRequest = new HttpPost(url);
            postRequest.setHeader("Content-Type", "application/x-www-form-urlencoded");
            System.out.println(token);
            // 设置请求体参数
            StringEntity entity = new StringEntity(token, ContentType.APPLICATION_FORM_URLENCODED);
            postRequest.setEntity(entity);
            // 发送请求并获取响应
            try (CloseableHttpResponse response = httpClient.execute(postRequest)) {
                int responseCode = response.getStatusLine().getStatusCode(); // 获取状态码
                // 检查响应状态
                if (responseCode == 200) {
                    // 读取响应体
                    String responseBody = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8);
                    // 使用Jackson解析JSON响应体
                    ObjectMapper objectMapper = new ObjectMapper();
                    JsonNode jsonResponse = objectMapper.readTree(responseBody);
                    JsonNode dataNode = jsonResponse.get("data");
                    TokenDTO tokenDTO = new TokenDTO();
                    tokenDTO.setJwcode(dataNode.get("jwcode").asInt());
                    tokenDTO.setUsername(dataNode.get("username").asText());
                    return tokenDTO;
                }
                else {
                    throw new RuntimeException("Failed : HTTP error code : " + responseCode);
                }
            }
        }
    }

    // 获取token中的jwcode
    public Integer getJwcode(String token) throws IOException {
        TokenDTO dto = analysisToken(token);
        return dto.getJwcode();
    }
    public String getUsername(String token) throws IOException {
        TokenDTO dto = analysisToken(token);
        return dto.getUsername();
    }

}