SpringMVC拦截Controller方法

小鱼儿 2022-06-02 23:25 240阅读 0赞

spring配置：

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd ">

<mvc:annotation-driven />

<aop:aspectj-autoproxy proxy-target-class="true"/>

<bean id="runAdvisor" class="org.springframework.aop.support.NameMatchMethodPointcutAdvisor">
       <property name="advice">
          <bean class="com.**.api.web.interceptor.MyInterceptor"></bean>
       </property>
       <property name="mappedNames">
          <list>
             <value>getDetails</value> </list>
       </property>
    </bean>
     <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
       <property name="beanNames">
          <list>
                    <value>MyController</value> </list>
       </property>
       <property name="interceptorNames">
          <list>
             <value>runAdvisor</value>
          </list>
       </property>
    </bean>

拦截处理类：

public class MyInterceptor implements MethodInterceptor {
        @Override
        public Object invoke(MethodInvocation methodInvocation) throws Throwable {
            if (条件判断) {
                JSONObject jsonObject = new JSONObject();
                jsonObject.put("error", "失败返回");
                return jsonObject;
            }
            return methodInvocation.proceed();
        }
    }