解決方式

<mvc:annotation-driven>
        <mvc:message-converters>
            <!-- 配置JSON消息轉(zhuǎn)換器 -->
            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
                <property name="supportedMediaTypes">
                    <list>
                        <value>application/json;charset=UTF-8</value>
                    </list>
                </property>
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>

將Java對象轉(zhuǎn)換為JSON格式的響應(yīng)，使用spring-mvc.xml配置適當(dāng)?shù)南⑥D(zhuǎn)換器。文章來源地址http://www.zghlxwxcb.cn/news/detail-696122.html

問題出處的相關(guān)類如下

interceptor如下

package com.ekgc.interceptor;

import com.ekgc.exception.UnLoginException;
import com.ekgc.pojo.SysUser;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * 登錄攔截器
 * 1.實(shí)現(xiàn) HandlerInterceptor接口
 * 2.實(shí)現(xiàn)接口方法
 * 3.在springmvc.xml中配置攔截器
 * @author Magic
 * @version 1.0
 */
public class LoginInterceptor implements HandlerInterceptor {
	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
		System.out.println("preHandle...");
		// 記錄請求處理開始時(shí)間
		request.setAttribute("startTime", System.currentTimeMillis());

		// 檢查用戶是否已經(jīng)登錄
		if (!isLoggedIn(request)) {
			//拋出未登錄異常
			throw new UnLoginException("您還沒有登錄?。。?);
		}
		return true;
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
		System.out.println("postHandle...");
		// 計(jì)算請求處理時(shí)間
		long startTime = (long) request.getAttribute("startTime");
		long endTime = System.currentTimeMillis();
		long executionTime = endTime - startTime;

		System.out.println("Request execution time: " + executionTime + " ms");
	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
		System.out.println("afterCompletion...");
	}

	private boolean isLoggedIn(HttpServletRequest request) {
		// 檢查用戶是否已登錄的邏輯
		HttpSession session = request.getSession();
		SysUser user = (SysUser) session.getAttribute("user");
		// 返回true表示已登錄，false表示未登錄
		if (user == null) {
			return false;
		}
		return true;
	}
}

?自定義異常類

package com.ekgc.exception;

/**
 * @author Magic
 * @version 1.0
 */
public class UnLoginException extends RuntimeException{
    public UnLoginException(String message) {
        super(message);
    }
}

?異常處理類

package com.ekgc.exception;

import com.ekgc.response.RespBody;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;



/**
 * 登錄異常處理類
 * @author Magic
 * @version 1.0
 */
@ControllerAdvice
public class LoginExceptionHandler {

    @ExceptionHandler(UnLoginException.class)
    @ResponseBody
    public RespBody<String> loginExceptionHandler(UnLoginException e) {
        String message = e.getMessage();
        System.out.println(message);
        return new RespBody<String>(-1,message,message);
    }
}

到了這里，關(guān)于解決攔截器拋出異常處理類的500狀態(tài)碼Html默認(rèn)格式響應(yīng) ！的文章就介紹完了。如果您還想了解更多內(nèi)容，請?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！