saas-export项目service层

ゞ浴缸里的玫瑰 2022-12-17 07:28 108阅读 0赞

# 五）service #

*  （1）service依赖dao
 *  （2）编写测试
 *  （3）如何读取另一个工程的spring的配置

classpath: 加载当前maven工程的resources目录下的配置文件  
classpath\*: 加载当前maven工程及其依赖工程的resources目录下的配置文件  
applicationContext-\*.xml: 读取所有符合规则的文件

## TestCompanyService ##

/** * Created by 李柏霖 * 2020/10/22 20:33 */
    
    package com.lbl.service;
    
    import com.lbl.domain.Company;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.test.context.ContextConfiguration;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    
    import java.util.List;
    
    //2：添加spring的单元测试
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration("classpath*:spring/applicationContext-*.xml")  //3:创建 spring/applicationContext-tx.xml
    public class TestCompanyService { 
        @Autowired
        ICompanyService  companyService;
        @Test
        public void test01(){ 
            //1:编写了业务逻辑的测试
            //等号 左边是接口 右边是实现类
            //ICompanyService service = new CompanyServiceImpl();
            List<Company> list = companyService.findAll();
            System.out.println(list);
        }
    }

## spring/applicationContext-tx.xml ##

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    
        
        <context:component-scan base-package="com.lbl.service"/>
    
    
        
    
        
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            
            <property name="dataSource" ref="dataSource"/>
        </bean>
    
        
        <tx:advice id="txAdvice" transaction-manager="transactionManager" >
            
            <tx:attributes>
                
                <tx:method name="find*" isolation="DEFAULT" propagation="SUPPORTS"/>
                <tx:method name="query*" isolation="DEFAULT" propagation="SUPPORTS"/>
                <tx:method name="select*" isolation="DEFAULT" propagation="SUPPORTS"/>
                <tx:method name="get*" isolation="DEFAULT" propagation="SUPPORTS"/>
                
                <tx:method name="*" isolation="DEFAULT" propagation="REQUIRED"/>
            </tx:attributes>
        </tx:advice>
    
        
        <aop:config>
            
            <aop:pointcut id="pt" expression="execution(* com.lbl.service.*.impl.*.*(..))"/>
    
            
            <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>
        </aop:config>
    
    </beans>

## 如果出现utf-8异常 ##

去父工程的pom.xml

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <maven.compiler.source>1.8</maven.compiler.source>
            <maven.compiler.target>1.8</maven.compiler.target>

## 如果出现applicationContext异常 ##

@ContextConfiguration("classpath*:spring/applicationContext-*.xml")

classpath: 加载当前maven工程的resources目录下的配置文件  
classpath\*: 加载当前maven工程及其依赖工程的resources目录下的配置文  
applicationContext-\*.xml: 读取所有符合规则的文件

## 如果出现Company找不到类异常 ##

<packaging>pom</packaging>
    export_parent
    
    <packaging>jar</packaging>
    export_domain
    export_dao
    export_system_service
    
    <packaging>war</packaging>
    export_web_manager

## 运行结果 ： ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3OTI0OTA1_size_16_color_FFFFFF_t_70_pic_center]

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