参考文章

arthas获取spring bean

写一个工具Util

package com.example.lredisson.util;import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;/*** @author lixiognl -c 18b4aac2 '#context=@com.example.lredisson.util.OSSSpringUtil@getContext(),#context.getBean("testModel").getAge()'* */@Component
public class OSSSpringUtil implements ApplicationContextAware {private static ApplicationContext context;@Overridepublic void setApplicationContext(ApplicationContext applicationContext) throws BeansException {context = applicationContext;}public static <T> T getBean(String beanName, Class<T> clazz) {return context.getBean(beanName, clazz);}public static Object getBean(String beanName) {return context.getBean(beanName);}public static ApplicationContext getContext() {return context;}
}

结果

sc -d com.example.lredisson.util.OSSSpringUtilclass-info        com.example.lredisson.util.OSSSpringUtil                                                                       code-source       /Users/admin/work/llixi/lredisson/target/classes/                                                              name              com.example.lredisson.util.OSSSpringUtil                                                                       isInterface       false                                                                                                          isAnnotation      false                                                                                                          isEnum            false                                                                                                          isAnonymousClass  false                                                                                                          isArray           false                                                                                                          isLocalClass      false                                                                                                          isMemberClass     false                                                                                                          isPrimitive       false                                                                                                          isSynthetic       false                                                                                                          simple-name       OSSSpringUtil                                                                                                  modifier          public                                                                                                         annotation        org.springframework.stereotype.Component                                                                       interfaces        org.springframework.context.ApplicationContextAware                                                            super-class       +-java.lang.Object                                                                                             class-loader      +-sun.misc.Launcher$AppClassLoader@18b4aac2                                                                    +-sun.misc.Launcher$ExtClassLoader@6aceb1a5                                                                  classLoaderHash   18b4aac2                                                                                                       Affect(row-cnt:1) cost in 28 ms.
[arthas@12906]$ ognl -c 18b4aac2 '#context=@com.example.lredisson.util.OSSSpringUtil@getContext(),#context.getBean("testModel").getAge()'
@Integer[20]

arthas验证先生代码版本

直接找到需要判断的class，用jad反编译看看结果最简单了啊。