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 
<?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
-
<?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
-
<?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
-
<?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
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
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}}