新手代码写的比较乱大佬们见谅,恳请大佬帮看一下,万分感谢
@RequestMapping("/adg")
public ModelAndView adg(Img img) {
ModelAndView mv = new ModelAndView();
String imgName = img.getImgName();
System.out.println(imgName);
mv.addObject("keyword", imgName);
AdvancedGeneral adv = new AdvancedGeneral();
adv.advancedGeneral(imgName);
mv.setViewName("login");
//mv.addObject("kwd", kwd);
return mv;
}
- 上面是第一个代码,imgName 是从前端输入框获取的值然后把它传到AdvancedGeneral类中advancedGeneral()方法中。
- 然后下面是AdvancedGeneral类的代码。
- 我想获取到kwd这个值再返回到前端页面去 应该如何实现。。。前段是用的jsp
public class AdvancedGeneral {
/**
* 重要提示代码中所需工具类
* FileUtil,Base64Util,HttpUtil,GsonUtils请从
* https://ai.baidu.com/file/658A35ABAB2D404FBF903F64D47C1F72
* https://ai.baidu.com/file/C8D81F3301E24D2892968F09AE1AD6E2
* https://ai.baidu.com/file/544D677F5D4E4F17B4122FBD60DB82B3
* https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3
* 下载
*/
public static String advancedGeneral(String imgName) {
// 请求url
String url = "https://aip.baidubce.com/rest/2.0/image-classify/v2/advanced_general";
try {
// 本地文件路径
System.out.println(imgName);
String filePath = "C:\\Users\\Administrator\\Desktop\\photo\\"+imgName+".jpg";
byte[] imgData = FileUtil.readFileByBytes(filePath);
String imgStr = Base64Util.encode(imgData);
String imgParam = URLEncoder.encode(imgStr, "UTF-8");
String param = "image=" + imgParam;
// 注意这里仅为了简化编码每一次请求都去获取access_token,线上环境access_token有过期时间, 客户端可自行缓存,过期后重新获取。
String accessToken = "24.261799bd470fb0f8bbd5e1c86b5b0282.2592000.1589199374.282335-19377424";
String result = HttpUtil.post(url, accessToken, param);
//System.out.println(result);
// 用阿里 fastjson 解析器 解析json
JSONObject jsonObject = JSON.parseObject(result);
// 得到 result_num 的值
Integer resultNum = jsonObject.getInteger("result_num");
// System.out.println(resultNum);
// 得到result集合
JSONArray jsa = jsonObject.getJSONArray("result");
List<Map<String, Object>> list =(List)jsa;
String kwd = (String) list.get(0).get("keyword");
System.out.println(kwd);
UserController uc = new UserController();
return kwd;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
```