前一阵子接手了一个使用SpringBoot 和spring-data-jpa开发的项目,后期新加入一个小伙伴,表示jpa相比mybatis太难用,多表联合的查询写起来也比较费劲,所以便加入了mybatis的支持
开始的时候
1
2
3
|
@Configuration
@EnableJpaRepositories ( "com.xxx.xxx.repository" )
class JpaConfig
|
使用这种方式去配置的jpa,遇到一个问题,就是能select 但是不能save,所以就修改为配置文件的方式:
下面直接上配置文件:
1、spring的配置
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
<?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:context= "http://www.springframework.org/schema/context"
xmlns:tx= "http://www.springframework.org/schema/tx"
xmlns:aop= "http://www.springframework.org/schema/aop"
xmlns:task= "http://www.springframework.org/schema/task"
xsi:schemaLocation="http: //www.springframework.org/schema/beans
http: //www.springframework.org/schema/beans/spring-beans.xsd
http: //www.springframework.org/schema/context
http: //www.springframework.org/schema/context/spring-context.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/task http://www.springframework.org/schema/task/spring-task.xsd">
<!-- 扫描注解文件 -->
<context:component-scan base- package = "com.xxx" />
<task:annotation-driven/>
<bean id= "springContextHolder" class = "com.xxx.common.config.SpringContextHolder"
lazy-init= "false" ></bean>
<bean id= "configProperties"
class = "org.springframework.beans.factory.config.PropertiesFactoryBean" >
<property name= "locations" >
<list>
<value>classpath*:jdbc.properties</value>
<value>classpath*:app.properties</value>
</list>
</property>
</bean>
<bean id= "propertyConfigurer"
class = "org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer" >
<property name= "systemPropertiesModeName" value= "SYSTEM_PROPERTIES_MODE_OVERRIDE" />
<property name= "fileEncoding" value= "UTF-8" />
<property name= "properties" ref= "configProperties" />
</bean>
<!-- dataSource 配置 -->
<bean id= "dataSource" class = "com.alibaba.druid.pool.DruidDataSource" init-method= "init"
destroy-method= "close" >
<!-- 基本属性 url、user、password -->
<!-- <property name= "driverClassName" value= "${ds.driverClassName}" /> -->
<property name= "url" value= "${ds.url}" />
<property name= "username" value= "${ds.username}" />
<property name= "password" value= "${ds.password}" />
<!-- 配置初始化大小、最小、最大 -->
<property name= "initialSize" value= "${ds.initialSize}" />
<property name= "minIdle" value= "${ds.minIdle}" />
<property name= "maxActive" value= "${ds.maxActive}" />
<!-- 配置获取连接等待超时的时间 -->
<property name= "maxWait" value= "${ds.maxWait}" />
<!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
<property name= "timeBetweenEvictionRunsMillis" value= "${ds.timeBetweenEvictionRunsMillis}" />
<!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
<property name= "minEvictableIdleTimeMillis" value= "${ds.minEvictableIdleTimeMillis}" />
<property name= "validationQuery" value= "${ds.validationQuery}" />
<property name= "testWhileIdle" value= "${ds.testWhileIdle}" />
<property name= "testOnBorrow" value= "${ds.testOnBorrow}" />
<property name= "testOnReturn" value= "${ds.testOnReturn}" />
<!-- 打开PSCache,并且指定每个连接上PSCache的大小 -->
<property name= "poolPreparedStatements" value= "${ds.poolPreparedStatements}" />
<property name= "maxPoolPreparedStatementPerConnectionSize"
value= "${ds.maxPoolPreparedStatementPerConnectionSize}" />
<!-- 配置监控统计拦截的filters -->
<property name= "filters" value= "${ds.filters}" />
<!-- 关闭abanded连接时输出错误日志 -->
<property name= "logAbandoned" value= "${ds.logAbandoned}" />
</bean>
<!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 -->
<bean id= "sqlSessionFactory" class = "org.mybatis.spring.SqlSessionFactoryBean" >
<property name= "dataSource" ref= "dataSource" />
<property name= "configLocation" value= "classpath:mybatis-config.xml" />
<property name= "typeAliasesPackage" value= "com.xxx.culture.domain" />
<!-- 自动扫描mapping.xml文件 -->
<property name= "mapperLocations" value= "classpath:mapper/**/*.xml" />
</bean>
<!-- DAO接口所在包名,Spring会自动查找其下的类 -->
<bean class = "org.mybatis.spring.mapper.MapperScannerConfigurer" >
<property name= "basePackage" value= "com.xxx.xxx.dao" />
</bean>
<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id= "transactionManager"
class = "org.springframework.jdbc.datasource.DataSourceTransactionManager" >
<property name= "dataSource" ref= "dataSource" />
</bean>
<!-- 事务管理 通知 -->
<tx:advice id= "txAdvice" transaction-manager= "transactionManager" >
<tx:attributes>
<!-- 对insert,update,delete 开头的方法进行事务管理,只要有异常就回滚 -->
<tx:method name= "insert*" propagation= "REQUIRED" rollback- for = "java.lang.Throwable" />
<tx:method name= "update*" propagation= "REQUIRED" rollback- for = "java.lang.Throwable" />
<tx:method name= "delete*" propagation= "REQUIRED" rollback- for = "java.lang.Throwable" />
<tx:method name= "remove*" propagation= "REQUIRED" rollback- for = "java.lang.Throwable" />
<tx:method name= "save*" propagation= "REQUIRED" rollback- for = "java.lang.Throwable" />
<tx:method name= "add*" propagation= "REQUIRED" />
<tx:method name= "flush*" propagation= "REQUIRED" />
<!-- select,count,get,find开头的方法,开启只读,提高数据库访问性能 -->
<tx:method name= "select*" read-only= "true" />
<tx:method name= "count*" read-only= "true" />
<tx:method name= "get*" read-only= "true" />
<tx:method name= "find*" read-only= "true" />
<tx:method name= "search*" read-only= "true" />
<!-- 对其他方法 使用默认的事务管理 -->
<tx:method name= "*" />
</tx:attributes>
</tx:advice>
<!-- 事务 aop 配置 com.xxx.smp.service..*Impl.*(..)) -->
<aop:config>
<aop:pointcut id= "serviceMethods"
expression= "execution(* com.xxx.xxx.service..*(..))" />
<aop:advisor advice-ref= "txAdvice" pointcut-ref= "serviceMethods" />
</aop:config>
<!-- 配置使Spring采用CGLIB代理 -->
<aop:aspectj-autoproxy proxy-target- class = "true" />
<!-- 事务注解支持 -->
<tx:annotation-driven transaction-manager= "transactionManager" />
< import resource= "applicationContext-jpa.xml" />
</beans>
|
2、jpa的配置
初始时遇到一个问题:jpa org.hibernate.LazyInitializationException: could not initialize proxy - no Session
配置如下
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
<?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:jpa= "http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="http: //www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http: //www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
http: //www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd" >
<bean id= "entityManagerFactory"
class = "org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" >
<!-- 指定数据源 -->
<property name= "dataSource" ref= "dataSource" />
<!-- 指定Entity实体类包路径 -->
<property name= "packagesToScan" >
<list>
<value>com.xxx.xxx.jpadomain</value>
</list>
</property>
<!-- 指定JPA属性;如Hibernate中指定是否显示SQL的是否显示、方言等 -->
<property name= "jpaVendorAdapter" >
<bean class = "org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" >
<!-- 是否生成ddl文件 -->
<property name= "generateDdl" value= "true" />
<!-- 是否展示sql -->
<property name= "showSql" value= "false" />
<!-- 必要的数据库库使用的详细信息 -->
<property name= "databasePlatform" value= "org.hibernate.dialect.MySQLDialect" />
<!-- mysql,自行选择 -->
<property name= "database" value= "MYSQL" />
</bean>
</property>
<property name= "jpaProperties" >
<props>
<prop key= "hibernate.ejb.naming_strategy" >org.hibernate.cfg.ImprovedNamingStrategy
</prop>
<prop key= "hibernate.hbm2ddl.auto" >update</prop>
<prop key= "hibernate.enable_lazy_load_no_trans" > true </prop>
</props>
</property>
</bean>
<!-- Spring Data Jpa配置 -->
<!-- 配置 启用扫描并自动创建代理的功能 factory- class = "com.monk.base.jpa.PeakJpaRepositoryFactory" 自己定义的bean注解方式,可以不写,直接注解所有包下的 -->
<jpa:repositories base- package = "com.xxx.xxx.repository"
transaction-manager-ref= "transactionManager"
entity-manager-factory-ref= "entityManagerFactory" />
<!-- Jpa 事务配置 -->
<bean id= "transactionManager" class = "org.springframework.orm.jpa.JpaTransactionManager" >
<property name= "entityManagerFactory" ref= "entityManagerFactory" />
</bean>
<!-- 开启注解事务 -->
<tx:annotation-driven transaction-manager= "transactionManager" proxy-target- class = "true" />
</beans>
|
以上所述是小编给大家介绍的Spring jpa和mybatis整合遇到的问题解析,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:http://www.cnblogs.com/modprobe/p/5675809.html