关于SpringBoot获取IOC容器中注入的Bean(推荐)

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