一: 注入一个TestUtils类

package com.shop.sell.Utils; import com.shop.sell.dto.CartDTO; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration public class TestUtils { @Bean(name="testDemo") public CartDTO said() { CartDTO cartDTO = new CartDTO(); cartDTO.setProductID(789); cartDTO.setProductQuantity(10); return cartDTO; } }

二: 创建一个获取bean的公共类

package com.shop.sell.Utils; import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.stereotype.Component; @Component public class SpringUtil implements ApplicationContextAware{ private static ApplicationContext applicationContext; @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { if(SpringUtil.applicationContext == null) { SpringUtil.applicationContext = applicationContext; } } public static ApplicationContext getApplicationContext() { return applicationContext; } public static Object getBean(String name){ return getApplicationContext().getBean(name); } public static <T> T getBean(Class<T> clazz){ return getApplicationContext().getBean(clazz); } public static <T> T getBean(String name,Class<T> clazz){ return getApplicationContext().getBean(name, clazz); } }

三: 在控制器中获取bean测试结果

package com.shop.sell.controller; import com.shop.sell.Utils.ResultVOUtil; import com.shop.sell.Utils.SpringUtil; import com.shop.sell.VO.ProductInfoVO; import com.shop.sell.VO.ProductVO; import com.shop.sell.VO.ResultVO; import com.shop.sell.dataobject.ProductCategory; import com.shop.sell.dataobject.ProductInfo; import com.shop.sell.dto.CartDTO; import com.shop.sell.from.OrderForm; import com.shop.sell.service.CategoryService; import com.shop.sell.service.ProductService; import org.springframework.beans.BeanUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.ApplicationContext; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import java.util.ArrayList; import java.util.Arrays; import java.util.List; /** * 买家商品 */ @RestController @RequestMapping("/buyer/product") public class BuyerProductController { private static ApplicationContext applicationContext; @Autowired private ProductService productService; @Autowired private CategoryService categoryService; @GetMapping(value = "/list") public CartDTO list(){ CartDTO cartDTO = (CartDTO) SpringUtil.getBean("testDemo"); return cartDTO; } }

四: 使用postman测试结果

总结

以上所述是小编给大家介绍的关于SpringBoot获取IOC容器中注入的Bean(推荐)，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！