动态注入Controller、Service所需的类

backend/src/main/java/com/qqchen/deploy/backend/framework/config/DependencyInjectionPostProcessor.java

@@ -35,6 +35,12 @@ public class DependencyInjectionPostProcessor implements BeanPostProcessor, Disp
 
     private final Map<Class<?>, IBaseService<?, ?, ?>> serviceCache = new ConcurrentHashMap<>();
 
+    private final Map<Class<?>, IBaseRepository<?, ?>> repositoryCache = new ConcurrentHashMap<>();
+
+    private final Map<Class<?>, BaseConverter<?, ?>> converterCache = new ConcurrentHashMap<>();
+
+    private final Map<Class<?>, EntityPath<?>> entityPathCache = new ConcurrentHashMap<>();
+
     public DependencyInjectionPostProcessor(ApplicationContext applicationContext) {
         this.applicationContext = applicationContext;
     }
@@ -96,7 +102,6 @@ public class DependencyInjectionPostProcessor implements BeanPostProcessor, Disp
     @SuppressWarnings("unchecked")
     private <T extends Entity<ID>, ID extends Serializable>
     IBaseService<?, ?, ?> findServiceForEntity(Class<T> entityClass, String controllerName) {
-        // 先尝试通过命名约定查找
         String serviceBeanName = "i" + entityClass.getSimpleName() + "Service";
         log.debug("Looking for service bean: {}", serviceBeanName);
 
@@ -104,13 +109,13 @@ public class DependencyInjectionPostProcessor implements BeanPostProcessor, Disp
             return (IBaseService<?, ?, ?>) applicationContext.getBean(serviceBeanName);
         }
 
-        // 如果找不到，再通过类型匹配查找
-        log.debug("Service not found by name, trying to find by type matching");
         return Arrays.stream(applicationContext.getBeanNamesForType(IBaseService.class))
             .map(name -> tryGetService(name, entityClass, controllerName))
             .filter(Objects::nonNull)
             .findFirst()
-            .orElseThrow(() -> new BusinessException(ResponseCode.DEPENDENCY_INJECTION_ERROR, new Object[] {entityClass.getSimpleName(), serviceBeanName}));
+            .orElseThrow(() -> new BusinessException(
+                ResponseCode.DEPENDENCY_INJECTION_SERVICE_NOT_FOUND,
+                new Object[] {entityClass.getSimpleName(), serviceBeanName}));
     }
 
     @SuppressWarnings("unchecked")
@@ -177,6 +182,9 @@ public class DependencyInjectionPostProcessor implements BeanPostProcessor, Disp
     @Override
     public void destroy() {
         serviceCache.clear();
+        repositoryCache.clear();
+        converterCache.clear();
+        entityPathCache.clear();
     }
 
     public static class DependencyInjectionException extends BeanCreationException {
@@ -190,54 +198,69 @@ public class DependencyInjectionPostProcessor implements BeanPostProcessor, Disp
     }
 
     // 辅助方法，用于注入具体的依赖
+    @SuppressWarnings("unchecked")
     private <T extends Entity<ID>, D extends BaseDTO, ID extends Serializable>
     void injectRepository(BaseServiceImpl<T, D, ID> service, Class<T> entityClass) {
         String repositoryBeanName = "I" + entityClass.getSimpleName() + "Repository";
         log.debug("Looking for repository bean: {}", repositoryBeanName);
-        if (!applicationContext.containsBean(repositoryBeanName)) {
+
-            throw new BusinessException(
+        IBaseRepository<T, ID> repository = (IBaseRepository<T, ID>) repositoryCache.computeIfAbsent(
-                ResponseCode.DEPENDENCY_INJECTION_ERROR,
+            entityClass,
-                new Object[] {entityClass.getSimpleName(), repositoryBeanName});
+            key -> {
-        }
+                if (!applicationContext.containsBean(repositoryBeanName)) {
-        IBaseRepository<T, ID> repository = (IBaseRepository<T, ID>) applicationContext.getBean(repositoryBeanName);
+                    throw new BusinessException(
+                        ResponseCode.DEPENDENCY_INJECTION_REPOSITORY_NOT_FOUND,
+                        new Object[] {key.getSimpleName(), repositoryBeanName});
+                }
+                return (IBaseRepository<?, ?>) applicationContext.getBean(repositoryBeanName);
+            });
+
         ReflectionUtils.setField("repository", service, repository);
     }
 
+    @SuppressWarnings("unchecked")
     private <T extends Entity<ID>, D extends BaseDTO, ID extends Serializable>
     void injectConverter(BaseServiceImpl<T, D, ID> service, Class<T> entityClass) {
         String converterBeanName = entityClass.getSimpleName().substring(0, 1).toLowerCase()
             + entityClass.getSimpleName().substring(1) + "ConverterImpl";
         log.debug("Looking for converter bean: {}", converterBeanName);
-        if (!applicationContext.containsBean(converterBeanName)) {
+
-            throw new BusinessException(
+        BaseConverter<T, D> converter = (BaseConverter<T, D>) converterCache.computeIfAbsent(
-                ResponseCode.DEPENDENCY_INJECTION_ERROR,
+            entityClass,
-                new Object[] {entityClass.getSimpleName(), converterBeanName});
+            key -> {
-        }
+                if (!applicationContext.containsBean(converterBeanName)) {
-        BaseConverter<T, D> converter = (BaseConverter<T, D>) applicationContext.getBean(converterBeanName);
+                    throw new BusinessException(
+                        ResponseCode.DEPENDENCY_INJECTION_CONVERTER_NOT_FOUND,
+                        new Object[] {key.getSimpleName(), converterBeanName});
+                }
+                return (BaseConverter<?, ?>) applicationContext.getBean(converterBeanName);
+            });
+
         ReflectionUtils.setField("converter", service, converter);
     }
 
-    private <T extends Entity<ID>, D extends BaseDTO, ID extends Serializable>
-    void injectEntityPath(BaseServiceImpl<T, D, ID> service, Class<T> entityClass) {
-        try {
-            EntityPath<T> entityPath = initEntityPath(entityClass);
-            ReflectionUtils.setField("entityPath", service, entityPath);
-        } catch (Exception e) {
-            throw new BusinessException(
-                ResponseCode.DEPENDENCY_INJECTION_ERROR,
-                new Object[] {entityClass.getSimpleName(), e.getMessage()});
-        }
-    }
-
     @SuppressWarnings("unchecked")
-    private <T extends Entity<ID>, ID extends Serializable> EntityPath<T> initEntityPath(Class<T> entityClass) {
+    private <T extends Entity<ID>, D extends BaseDTO, ID extends Serializable> void injectEntityPath(BaseServiceImpl<T, D, ID> service, Class<T> entityClass) {
         try {
-            String qClassName = entityClass.getPackageName() + ".Q" + entityClass.getSimpleName();
+            EntityPath<T> entityPath = (EntityPath<T>) entityPathCache.computeIfAbsent(
-            Class<?> qClass = Class.forName(qClassName);
+                entityClass,
-            Field instanceField = qClass.getDeclaredField(entityClass.getSimpleName().toLowerCase());
+                key -> {
-            return (EntityPath<T>) instanceField.get(null);
+                    try {
+                        String qClassName = key.getPackageName() + ".Q" + key.getSimpleName();
+                        Class<?> qClass = Class.forName(qClassName);
+                        Field instanceField = qClass.getDeclaredField(key.getSimpleName().toLowerCase());
+                        return (EntityPath<?>) instanceField.get(null);
+                    } catch (Exception e) {
+                        throw new BusinessException(
+                            ResponseCode.DEPENDENCY_INJECTION_ENTITYPATH_FAILED,
+                            new Object[] {key.getSimpleName(), e.getMessage()});
+                    }
+                });
+            ReflectionUtils.setField("entityPath", service, entityPath);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            throw new IllegalStateException("Failed to get Q class for " + entityClass.getName(), e);
+            throw new BusinessException(ResponseCode.DEPENDENCY_INJECTION_ENTITYPATH_FAILED, new Object[] {entityClass.getSimpleName(), e.getMessage()});
         }
     }
 } 

backend/src/main/java/com/qqchen/deploy/backend/framework/enums/ResponseCode.java

@@ -29,7 +29,10 @@ public enum ResponseCode {
     EMAIL_EXISTS(2003, "user.email.exists"),
 
     // 依赖注入相关错误 (1100-1199)
-    DEPENDENCY_INJECTION_ERROR(1100, "dependency.injection.service.not.found");
+    DEPENDENCY_INJECTION_SERVICE_NOT_FOUND(1100, "dependency.injection.service.not.found"),
+    DEPENDENCY_INJECTION_REPOSITORY_NOT_FOUND(1101, "dependency.injection.repository.not.found"),
+    DEPENDENCY_INJECTION_CONVERTER_NOT_FOUND(1102, "dependency.injection.converter.not.found"),
+    DEPENDENCY_INJECTION_ENTITYPATH_FAILED(1103, "dependency.injection.entitypath.failed");
 
     private final int code;
 

backend/src/main/resources/messages_en.properties

@@ -26,4 +26,10 @@ system.retry.exceeded.error=Operation retry limit exceeded, please try again lat
 # Entity Not Found Messages
 entity.not.found.id=Entity with id {0} not found
 entity.not.found.message={0}
-entity.not.found.name.id={0} with id {1} not found
+entity.not.found.name.id={0} with id {1} not found
+
+# Dependency Injection
+dependency.injection.service.not.found=No service found for entity {0} (tried bean name: {1})
+dependency.injection.repository.not.found=No repository found for entity {0}: {1}
+dependency.injection.converter.not.found=No converter found for entity {0}: {1}
+dependency.injection.entitypath.failed=Failed to initialize EntityPath for entity {0}: {1}

backend/src/main/resources/messages_zh_CN.properties

@@ -26,4 +26,10 @@ system.retry.exceeded.error=操作重试次数超限，请稍后再试
 # Entity Not Found Messages
 entity.not.found.id=找不到ID为{0}的实体
 entity.not.found.message={0}
-entity.not.found.name.id=找不到ID为{1}的{0}
+entity.not.found.name.id=找不到ID为{1}的{0}
+
+# 依赖注入相关
+dependency.injection.service.not.found=找不到实体 {0} 对应的服务 (尝试过的bean名称: {1})
+dependency.injection.repository.not.found=找不到实体 {0} 对应的Repository: {1}
+dependency.injection.converter.not.found=找不到实体 {0} 对应的Converter: {1}
+dependency.injection.entitypath.failed=初始化实体 {0} 的EntityPath失败: {1}