spring MVC 整合mongodb
Spring Mongodb
目录
1 SPRING整合MONGODB 1
1.1 环境准备 1
1.2 包依赖 1
1.3 配置 2
2 案列 5
2.1 SPRING MVC整合MONGODB代码案例 5
1 Spring整合Mongodb
1.1 环境准备
1. mongodb官网 http://www.mongodb.org/,下载mongodb安装包和mongodb的java驱动包。
mongodb安装包(下载地址http://www.mongodb.org/downloads)。Mongodb的安装和使用可见mongodb权威指南。
mongodb驱动包(下载地址https://github.com/mongodb/mongo-java-driver/downloads)
2. Spring下载中心(http://www.springsource.org/download/community)下载spring,spring-data-mongodb,spring-data-commons包。
1.2 包依赖
项目所需依赖包如下:
Mongodb驱动包:
mongo-2.8.0.jar
spring包:
aopalliance-1.0.jar
commons-logging-1.1.jar
org.springframework.aop-3.1.RELEASE.jar
org.springframework.asm-3.1.RELEASE.jar
org.springframework.beans-3.1.RELEASE.jar
org.springframework.context-3.1.RELEASE.jar
org.springframework.context.support-3.1.RELEASE.jar
org.springframework.core-3.1.RELEASE.jar
org.springframework.expression-3.1.RELEASE.jar
org.springframework.transaction-3.1.RELEASE.jar
org.springframework.web-3.1.RELEASE.jar
org.springframework.web.servlet-3.1.RELEASE.jar
log4j-1.2.16.jar
slf4j-log4j12-1.6.4.jar
slf4j-api-1.6.4.jar
Spring Data Mongodb包:
spring-data-mongodb-1.1.0.M2.jar
Spring Data Commons包:
spring-data-commons-core-1.4.0.M1.jar
1.3 配置
(1)配置Web.xml
Java代码
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<?xml version= "1.0" encoding= "UTF-8" ?> <web-app xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" xmlns= "http://java.sun.com/xml/ns/javaee" xmlns:web= "http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation= "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id= "WebApp_ID" version= "2.5" > <display-name>TestSpringMongodb</display-name> <!— spring mvc dispatcher servlet --> <servlet> <servlet-name>spring</servlet-name> <servlet- class >org.springframework.web.servlet.DispatcherServlet</servlet- class > <load-on-startup> 1 </load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <listener> <listener- class >org.springframework.web.context.ContextLoaderListener</listener- class > </listener> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app> |
- 注意:url-pattern的配置为‘/’。
- (2)配置applicationContext.xml
Java代码
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<?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:p=
"http://www.springframework.org/schema/p"
xmlns:context=
"http://www.springframework.org/schema/context"
xmlns:mvc=
"http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http:
//www.springframework.org/schema/mvc
http:
//www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http:
//www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http:
//www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- Activates various annotations to be detected in bean classes -->
<context:annotation-config />
<!-- Scans the classpath
for
annotated components that will be auto-registered as Spring beans.For example
@Controller
and
@Service
. Make sure to set the correct base-
package
-->
<context:component-scan base-
package
=
"bgi.contrl"
/>
<context:component-scan base-
package
=
"bgi.service"
/>
<!-- Configures the annotation-driven Spring MVC Controller programming model.Note that, with Spring
3.0
,
this
tag works in Servlet MVC only! -->
<mvc:annotation-driven />
<!-- Loads MongoDB configuraton -->
<
import
resource=
"mongo-config.xml"
/>
</beans>
(3)配置mongo-config.xml
Java代码
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<?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:p=
"http://www.springframework.org/schema/p"
xmlns:mongo=
"http://www.springframework.org/schema/data/mongo"
xsi:schemaLocation="http:
//www.springframework.org/schema/beans
http:
//www.springframework.org/schema/beans/spring-beans-3.0.xsd
http:
//www.springframework.org/schema/data/mongo
http:
//www.springframework.org/schema/data/mongo/spring-mongo.xsd">
<!-- Default bean name is
'mongo'
-->
<mongo:mongo host=
"localhost"
port=
"27017"
/>
<!-- Offers convenience methods and automatic mapping between MongoDB JSON documents and your domain classes. -->
<bean id=
"mongoTemplate"
class
=
"org.springframework.data.mongodb.core.MongoTemplate"
>
<constructor-arg ref=
"mongo"
/>
<constructor-arg name=
"databaseName"
value=
"test"
/>
</bean>
</beans>
注意:官方文档和案例配置都是旧版本的配置案例,spring-data-mongo从1.0.0.M1到1.0.0.M3的版本叫做Spring Data Document。1.0.0.M4开始更名为Spring Data MongoDB 1.0.0 M4,不过官网并没有特别说明,乍一看有点莫名其妙,尤其是MongoTemplate从org.springframework.data.document.mongod移动到org.springframework.data.mongodb.core,官网的HelloWorldExample却还是用org.springframework.data.document.mongodb做配置案例。多少会导致使用时的误导。
(4)配置spring-servlet.xml
Java代码
- 123456789101112
<?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:p=
"http://www.springframework.org/schema/p"
xsi:schemaLocation="http:
//www.springframework.org/schema/beans
http:
//www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<!-- Declare a view resolver -->
<bean id=
"viewResolver"
class
=
"org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix=
"/"
p:suffix=
".jsp"
/>
</beans>
注意:spring-servlet.xml的命名是根据web.xml中配置spring DispatcherServlet的名字 (<servlet-name>spring</servlet-name>)加上-servlet命名的。
2 案列
2.1 Spring mvc整合mongodb代码案例
(1),control层
Java代码
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package bgi.contrl; import java.util.logging.Logger; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import bgi.pojo.User; import bgi.service.UserService; @Controller @RequestMapping ( "/user" ) public class UserCtrl { private static Logger logger = Logger.getLogger(UserCtrl. class .getName()); @Autowired UserService userService; @RequestMapping ( "/index" ) public ModelAndView index(){ ModelAndView mav = new ModelAndView( "/user/index" ); return mav; } @RequestMapping ( "/save" ) public ModelAndView saveUser(User user){ ModelAndView mav = new ModelAndView( "/user/index" ); logger.info( "save:" +user); userService.saveUser(user); return mav; } @RequestMapping ( "/find" ) public ModelAndView findUser(User user){ ModelAndView mav = new ModelAndView( "/user/index" ); user = userService.findUserByName(user.getName()); logger.info( "find:" +user); return mav; } } ( 2 ),service层 Java代码 package bgi.service; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.mongodb.core.MongoTemplate; import org.springframework.data.mongodb.core.query.Criteria; import org.springframework.data.mongodb.core.query.Query; import org.springframework.stereotype.Service; import bgi.pojo.User; @Service public class UserService { private static String USER_COLLECTION = "user" ; @Autowired MongoTemplate mongoTemplate; /** * * @param user */ public void saveUser(User user){ mongoTemplate.save(user, USER_COLLECTION); } /** * * @param name * @return */ public User findUserByName(String name){ return mongoTemplate.findOne( new Query(Criteria.where( "name" ).is(name)), User. class , USER_COLLECTION); } } |
Java代码
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package bgi.pojo; import java.io.Serializable; import org.springframework.data.annotation.Id; public class User implements Serializable{ private static final long serialVersionUID = 1L; @Id String uid; String name; int age; public String getUid() { return uid; } public void setUid(String uid) { this .uid = uid; } public String getName() { return name; } public void setName(String name) { this .name = name; } public int getAge() { return age; } public void setAge( int age) { this .age = age; } @Override public String toString() { return "{USER:{uid:" + this .uid+ ",name:" + this .name+ ",age:" + this .age+ "}}" ; } } |
- http://localhost:8080/TestSpringMongodb/user/save?name=xiaohong&age=23
- save:{USER:{uid:5020bef0fe7d16eb86275c7a,name:xiaohong,age:23}}
- http://localhost:8080/TestSpringMongodb/user/find?name=xiaohong
- find:{USER:{uid:5020bef0fe7d16eb86275c7a,name:xiaohong,age:23}}
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