pojo类无法注入service解决示例

女爷i 2022-02-04 16:27 237阅读 0赞

From: [https://blog.csdn.net/danielzhou888/article/details/83351913][https_blog.csdn.net_danielzhou888_article_details_83351913]

本示例解决springboot中service无法注入普通jopo的问题。  
不啰嗦，直接上代码。  
如果该示例帮您解决了问题，请助推哦。

pojo类：

package com.scmd.controller;
    
    import com.scmd.service.IWxaccesstokenService;
    import com.scmd.utils.ApplicationContextProvider;
    import lombok.Data;
    import org.springframework.stereotype.Component;
    
    import java.util.HashMap;
    import java.util.Map;
    
    /**
    * Created by Administrator on 2018/10/24.
    */
    @Data
    @Component
    public class AccessToken {
    	private static String access_token = null;
    	
    	public static final Map<String,Object> cache = new HashMap<String,Object>();
    	
    	public AccessToken(String access_token) {
    		this.access_token = access_token;
    	}
    	
    	public AccessToken() {
    	}
    	
    	public void updateAccessToken(Map<String,Object> cache) {
    		IWxaccesstokenService wxservice = ApplicationContextProvider.getBean(IWxaccesstokenService.class);
    		cache.put("access_token",wxservice.findByIdEntity(1).getAccesstoken());
    	}
    
    }

ApplicationContext辅助类：

package com.scmd.utils;
    
    import org.springframework.context.ApplicationContext;
    import org.springframework.stereotype.Component;
    
    /**
    * Created by Administrator on 2018/10/24.
    */
    @Component
    public class ApplicationContextProvider{
    
    	private static ApplicationContext applicationContext;
    	
    	public static void setApplicationContext(ApplicationContext context) {
    		applicationContext = context;
    	}
    	
    	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);
    	}
    
    }

启动类：

package com.scmd;
    
    import com.scmd.utils.ApplicationContextProvider;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.boot.web.servlet.ServletComponentScan;
    import org.springframework.context.ConfigurableApplicationContext;
    
    @SpringBootApplication
    @ServletComponentScan
    public class ScmdApplication {
    	private static final Logger logger = LoggerFactory.getLogger(ScmdApplication.class);
    
    public static void main(String[] args) {
    	ConfigurableApplicationContext applicationContext = SpringApplication.run(ScmdApplication.class, args);
    	// 向辅助类注入ApplicationContext
    	ApplicationContextProvider.setApplicationContext(applicationContext);
    }
    }

[https_blog.csdn.net_danielzhou888_article_details_83351913]: https://blog.csdn.net/danielzhou888/article/details/83351913