解决Jpa经典的noSession问题(基于springboot的项目中)

    科技2022-07-20  112

    前言

    could not initialize proxy - no Session; 基于JPA的实现来分析,就是在进行数据库访问之时,当前针对数据库的访问与操作session已经关闭且释放了,故提示no Session可用。

    解决

    在启动类中注入一个Bean

    package com.ihrm.system; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.autoconfigure.domain.EntityScan; import org.springframework.context.annotation.Bean; import org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter; //1.配置springboot的包扫描 @SpringBootApplication(scanBasePackages = "com.ihrm") //2.配置jpa注解的扫描 @EntityScan(value="com.ihrm.domain.system") public class SystemApplication { /** * 启动方法 */ public static void main(String[] args) { SpringApplication.run(SystemApplication.class,args); } //解决no session @Bean public OpenEntityManagerInViewFilter openEntityManagerInViewFilter() { return new OpenEntityManagerInViewFilter(); } }
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