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前端傳參的顯示和接收問題

@RunWith(SpringRunner.class)

@SpringBootTest

用于代碼的單元測試。

@Bean(name?=?"sqlSessionFactory")
public?SqlSessionFactoryBean?createSqlSessionFactoryBean()?throws?IOException?{
????SqlSessionFactoryBean?sqlSessionFactoryBean?=?new?SqlSessionFactoryBean();
????//掃描mybatis-config.xml配置文件
????sqlSessionFactoryBean.setConfigLocation(new?ClassPathResource(mybatisConfigFilePath));
????//讀取jar文件信息
????PathMatchingResourcePatternResolver?resolver?=?new?PathMatchingResourcePatternResolver();
????//指定mapper文件的掃描路徑
????String?packagSearchPath?=?PathMatchingResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX?+?mapperPath;//讀取路徑
????sqlSessionFactoryBean.setMapperLocations(resolver.getResources(packagSearchPath));//設(shè)置路徑
????//指定數(shù)據(jù)源
????sqlSessionFactoryBean.setDataSource(dataSource);
????//指定映射實(shí)體類package的掃描路徑
????sqlSessionFactoryBean.setTypeAliasesPackage(entityPackage);
????return?sqlSessionFactoryBean;
}

@Bean(name?=?"sqlSessionFactory")
public?SqlSessionFactoryBean?createSqlSessionFactoryBean()?throws?IOException?{
????SqlSessionFactoryBean?sqlSessionFactoryBean?=?new?SqlSessionFactoryBean();
????//掃描mybatis-config.xml配置文件
????sqlSessionFactoryBean.setConfigLocation(new?ClassPathResource(mybatisConfigFilePath));
????//讀取jar文件信息
????PathMatchingResourcePatternResolver?resolver?=?new?PathMatchingResourcePatternResolver();
????//指定mapper文件的掃描路徑
????String?packagSearchPath?=?PathMatchingResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX?+?mapperPath;//讀取路徑
????sqlSessionFactoryBean.setMapperLocations(resolver.getResources(packagSearchPath));//設(shè)置路徑
????//指定數(shù)據(jù)源
????sqlSessionFactoryBean.setDataSource(dataSource);
????//指定映射實(shí)體類package的掃描路徑
????sqlSessionFactoryBean.setTypeAliasesPackage(entityPackage);
????return?sqlSessionFactoryBean;
}

@ExceptionHandler??
如何編寫一個全局的異常處理類？
如何編寫一個全局的事物控制？

@RunWith(SpringRunner.class)
@SpringBootTest??
這兩個注解是用在單元測試的類上的，了解下。

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pom導(dǎo)入mysql數(shù)據(jù)源出錯是因?yàn)樵赼pplication.properties里沒有寫MySQL的配置。

spring.datasource.url=jdbc:mysql\://地址ip\:端口號/數(shù)據(jù)庫名成?setUnicode=true&characterEncoding=utf8
spring.datasource.username=數(shù)據(jù)庫名稱
spring.datasource.password=數(shù)據(jù)庫密碼

自定義統(tǒng)一異常處理類

SpringBoot自定義數(shù)據(jù)源及配置