一撕阎、Controller跨域jsonp格式返回

/**
 * JSONP支持
 */
@ControllerAdvice(basePackages = "com.kugou.fanxing.romantic.controller")
public class JsonpAdvice extends AbstractJsonpResponseBodyAdvice{  
  
    public JsonpAdvice() {  
        super("jsonCallBack","jsonpcallback");
    }  
}

二拜隧、Controller全局異常統(tǒng)一攔截

/**
* 統(tǒng)一異常攔截
*/

@ControllerAdvice(assignableTypes = {AController.class})
public class MobileExceptionHandler {

    @ExceptionHandler(value = BizException.class)
    @ResponseBody
    public Result jsonErrorHandler(HttpServletRequest req, BizException e) {
        return Response.failed(e);
    }

    @ExceptionHandler(value = {Exception.class})
    @ResponseBody
    public Result jsonErrorHandler(HttpServletRequest req, Exception e) {
        return Response.failed(ErrCode.UNKNOWN_ERROR);
    }

}

三阵苇、Controller全局共享數(shù)據(jù)

@ControllerAdvice
public class GlobalShareDataHandler{

    /**
     * 全局?jǐn)?shù)據(jù)綁定，所有controller都可以通過Model對象拿到這個(gè)map
     * Map<String,Object> map = model.asMap();
     * System.out.println(map);
     * @return
     */
    @ModelAttribute(name = "md")
    public Map<String,Object> mydata() {
        HashMap<String, Object> map = new HashMap<>();
        map.put("age", 99);
        map.put("gender", "男");
        return map;
    }

}

四洲拇、Controller全局輸入?yún)?shù)預(yù)處理（加一個(gè)前綴奈揍，避免參數(shù)重名）

/**
* 輸入?yún)?shù)b的每一個(gè)字段名前加上前綴b.
*/
@ControllerAdvice
public class GlobalBinderHandler{
    
    @InitBinder("b")
    public void b(WebDataBinder binder) {
        binder.setFieldDefaultPrefix("b.");
    }
}


@RestController
public class Hello {

    @PostMapping("/book")
    public void addBook(@ModelAttribute("b") Book book, @ModelAttribute("a") Author author) {
        System.out.println(book);
        System.out.println(author);
    }
}