de/backend/src/main/java/io/dataease/plugins/loader/ControllerLoader.java
2021-09-14 11:34:03 +08:00

96 lines
3.4 KiB
Java

package io.dataease.plugins.loader;
import io.dataease.commons.utils.LogUtil;
import io.dataease.plugins.config.SpringContextUtil;
import org.springframework.stereotype.Component;
import org.springframework.util.ClassUtils;
import org.springframework.util.ReflectionUtils;
import org.springframework.web.servlet.mvc.method.RequestMappingInfo;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
import java.lang.reflect.Method;
import java.util.List;
@Component
public class ControllerLoader {
/**
* 去掉Controller的Mapping
* @param controllerBeanName
*/
private void unregisterController(String controllerBeanName){
final RequestMappingHandlerMapping requestMappingHandlerMapping=(RequestMappingHandlerMapping)SpringContextUtil.getBean("requestMappingHandlerMapping");
if(requestMappingHandlerMapping!=null){
String handler=controllerBeanName;
Object controller= SpringContextUtil.getBean(handler);
if(controller==null){
return;
}
final Class<?> targetClass=controller.getClass();
ReflectionUtils.doWithMethods(targetClass, new ReflectionUtils.MethodCallback() {
public void doWith(Method method) {
Method specificMethod = ClassUtils.getMostSpecificMethod(method, targetClass);
try {
Method createMappingMethod = RequestMappingHandlerMapping.class.
getDeclaredMethod("getMappingForMethod", Method.class, Class.class);
createMappingMethod.setAccessible(true);
RequestMappingInfo requestMappingInfo =(RequestMappingInfo)
createMappingMethod.invoke(requestMappingHandlerMapping,specificMethod,targetClass);
if(requestMappingInfo != null) {
requestMappingHandlerMapping.unregisterMapping(requestMappingInfo);
}
}catch (Exception e){
e.printStackTrace();
}
}
}, ReflectionUtils.USER_DECLARED_METHODS);
}
}
/**
* 注册Controller
* @param controllerBeanName
* @throws Exception
*/
private void registerController(String controllerBeanName) throws Exception{
final RequestMappingHandlerMapping requestMappingHandlerMapping=(RequestMappingHandlerMapping) SpringContextUtil.getBean("requestMappingHandlerMapping");
if(requestMappingHandlerMapping!=null){
String handler=controllerBeanName;
Object controller= SpringContextUtil.getBean(handler);
if(controller==null){
return;
}
unregisterController(controllerBeanName);
//注册Controller
Method method=requestMappingHandlerMapping.getClass().getSuperclass().getSuperclass().getDeclaredMethod("detectHandlerMethods",Object.class);
method.setAccessible(true);
method.invoke(requestMappingHandlerMapping,handler);
}
}
public void registerController(List<String> beanNames) {
beanNames.forEach(name -> {
try {
registerController(name);
} catch (Exception e) {
// e.printStackTrace();
LogUtil.error(e);
}
});
}
}