springMVC使⽤反射调⽤⽅法
@Override
public ApiPageVO run(AlEnginTrackTreeVO tree) {
String currMethod = CurrMethod();
if(currMethod!=null) {
Class<?> clazz;
Method method;
ApiPageVO result= new ApiPageVO();
try {
clazz = TaskFlowExercisesServiceImpl.class;
// 定义参数类型
Class[] params = new Class[1];
params[0] = AlEnginTrackTreeVO.class;
// for(int i=0;i<currParam.length;i++) {
// params[i] = String.class;
// }
method = Method("FCProcessor_"+currMethod, params);
result= (ApiPageVO) method.wInstance(), tree);
} catch (NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException | InstantiationException e e.printStackTrace();
}
if(result!=null) {
return result;
}else {
return null;
}
}
return null;
}
这样就可以根据其中某个属性值来调⽤不同的⽅法
ApiPageVO FCProcessor_002(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_003(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_004(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_005(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_006(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_007(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_008(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_009(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_010(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_011(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_012(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_013(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_014(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_015(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_016(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_017(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_018(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_019(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_020(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_021(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_022(AlEnginTrackTreeVO tree);
springmvc的注解有哪些ApiPageVO FCProcessor_023(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_024(AlEnginTrackTreeVO tree);
ApiPageVO FCProcessor_999(AlEnginTrackTreeVO tree);
但是在spring调⽤反射时会出现Autowired⽆法使⽤注⼊的坑，这个时候就得改下
@Override
public ApiPageVO run(AlEnginTrackTreeVO tree) {
String currMethod = CurrMethod();
if(currMethod!=null) {
Class<?> clazz;
Method method;
ApiPageVO result= new ApiPageVO();
try {
//获取spring的xml⽂件，也就是写了注解扫描包的那个xml
// ApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"l"});
ApplicationContext context = ApplicationContext();
//获取类，String("className")是我json中参数
Class<?> cls = Bean("taskFlowExercisesServiceImpl").getClass();
//获取指定的⽅法
// 定义参数类型
Class[] params = new Class[1];
params[0] = AlEnginTrackTreeVO.class;
Method m = Method("FCProcessor_"+currMethod,params);
//调⽤invoke⽅法
result = (ApiPageVO) m.Bean("taskFlowExercisesServiceImpl"),tree);
// ⽼⽅法，spring⽆法注⼊
// 定义参数类型
/
/ Class[] params = new Class[1];
// params[0] = AlEnginTrackTreeVO.class;
// for(int i=0;i<currParam.length;i++) {
// params[i] = String.class;
// }
// method = Method("FCProcessor_"+currMethod, params);
// result= (ApiPageVO) method.wInstance(), tree);
} catch (NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) { e.printStackTrace();
}
if(result!=null) {
return result;
}else {
return null;
}
}
return null;
}
⾄于 SpringContextUtil 这个：
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import t.ApplicationContext;
import t.ApplicationContextAware;
public class SpringContextUtil implements ApplicationContextAware {
private static ApplicationContext applicationContext; // Spring应⽤上下⽂环境
/**
* 实现ApplicationContextAware接⼝的回调⽅法，设置上下⽂环境
*
* @param applicationContext
* @throws BeansException
*/
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
SpringContextUtil.applicationContext = applicationContext;
}
/
**
* @return ApplicationContext
*/
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
/**
* 获取对象
*
* @param name
* @return Object ⼀个以所给名字注册的bean的实例
* @throws BeansException
*/
public static Object getBean(String name) throws BeansException {
Bean(name);
}
/**
* 获取类型为requiredType的对象
* 如果bean不能被类型转换，相应的异常将会被抛出（BeanNotOfRequiredTypeException）
*
* @param name
* bean注册名
* @param requiredType
* 返回对象类型
* @return Object 返回requiredType类型对象
* @throws BeansException
*/
public static Object getBean(String name, Class requiredType) throws BeansException {
Bean(name, requiredType);
}
/**
* 如果BeanFactory包含⼀个与所给名称匹配的bean定义，则返回true
*
* @param name
* @return boolean
*/
public static boolean containsBean(String name) {
ainsBean(name);
}
/**
* 判断以给定名字注册的bean定义是⼀个singleton还是⼀个prototype。
* 如果与给定名字相应的bean定义没有被到，将会抛出⼀个异常（NoSuchBeanDefinitionException） *
* @param name
* @return boolean
* @throws NoSuchBeanDefinitionException
*/
public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException { return applicationContext.isSingleton(name);
}
/**
* @param name
* @return Class 注册对象的类型
* @throws NoSuchBeanDefinitionException
*/
public static Class getType(String name) throws NoSuchBeanDefinitionException {
Type(name);
}
/**
* 如果给定的bean名字在bean定义中有别名，则返回这些别名
*
* @param name
* @return
* @throws NoSuchBeanDefinitionException
*/
public static String[] getAliases(String name) throws NoSuchBeanDefinitionException { Aliases(name);
}
}
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