SpringMVC+Mongo简单配置
Ps：我使用的是Eclipse+Maven
首先新建工程
将其转化为maven
可以使用Eclipse自带的填入spring需要的jar包
找到mongo的依赖添加进去就行了
这是添加完毕后的pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.feng</groupId> <artifactId>SpringMongo</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>SpringMongo</name> <build> <sourceDirectory>src</sourceDirectory> <plugins> <plugin> <artifactId>maven-war-plugin</artifactId> <version>2.6</version> <configuration> <warSourceDirectory>WebContent</warSourceDirectory> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.3</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> </build> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.2.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.2.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.2.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.2.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.2.3.RELEASE</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-mongodb</artifactId> <version>1.8.2.RELEASE</version> </dependency> </dependencies> </project>
然后配置spring
spring-mvc.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <!-- 识图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/view/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans>
applicationContext.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:context="http://www.springframework.org/schema/context" xmlns:mongo="http://www.springframework.org/schema/data/mongo" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.8.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd"> <mvc:annotation-driven></mvc:annotation-driven> <!-- 扫描注解的目录 --> <context:component-scan base-package="com.feng.controller"></context:component-scan> <!-- 这一种可以指定数据库的ip和端口 <mongo:mongo id="mongoDB" host="127.0.0.1" port="27017"></mongo:mongo> <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> <constructor-arg ref=“mongoDB" /> <constructor-arg value=“test" /> 数据库的名称 <property name="writeConcern" value="SAFE" /> </bean> --> <!-- 默认访问127.0.0.1：27017 --> <mongo:db-factory id="mongoDbFactory" dbname="test"/> <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> <constructor-arg ref="mongoDbFactory" /> <property name="writeConcern" value="SAFE" /> </bean> </beans>
web.xml
<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>SpringMongo</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <!-- 配置拦截器，然后需要springmvc的配置文件 --> <servlet> <servlet-name>springDispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- 配置拦截器，拦截所有.action的请求 --> <servlet-mapping> <servlet-name>springDispatcherServlet</servlet-name> <url-pattern>*.action</url-pattern> </servlet-mapping> <!-- 加载spring的配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/applicationContext.xml</param-value> </context-param> <!-- Bootstraps the root web application context before servlet initialization --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> </web-app>
然后我有新建了个测试的类
package com.feng.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.mongodb.BasicDBObject;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
@Controller
@RequestMapping("/")
public class Test {
@Autowired
private MongoTemplate mt; //自动注入MongoTemplate
@RequestMapping("/index")
public String index(){
return "index";
}
}
这是我的index.jsp,放在了WEB-INF/view目录下
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <h1>index</h1> </body> </html>
首先测试获取所有数据，在test类中这样写
DBCollection db = mt.getCollection("user"); //获取test数据库里面的user这个collection
DBCursor dc = db.find();
while (dc.hasNext()) {
DBObject obj = dc.next();
System.out.println(obj);
}
然后访问http://localhost:8080/SpringMongo/index.action，自动跳转到index.jsp
控制台输出所有数据（我之前测试Mongo时乱填的）
{ "_id" : { "$oid" : "56aba53174a5c31c6a1be2b7"} , "name" : "feng" , "address" : { "street" : "2 Avenue" , "zipcode" : "10075" , "building" : "1480" , "coord" : [ -73.9557413 , 40.7720266]}}
{ "_id" : { "$oid" : "56ac73bc945e7d0dc812d9ba"} , "family" : { "one" : "BOB"}}
{ "_id" : { "$oid" : "56ac73cf945e7d28f4788954"} , "name" : "hua" , "family" : { "one" : "BOB" , "two" : "Bob" , "three" : "Jack"} , "phone" : "123456"}
{ "_id" : { "$oid" : "56ac790c945e7d030886611b"} , "name" : "hua" , "family" : { "one" : "nick" , "two" : "Bob" , "three" : "Jack"} , "phone" : "123456"}
测试条件查询，这是需要用到DBObject以及他的实现类BasicDBObject，参见http://api.mongodb.org/java/2.3/com/mongodb/BasicDBObject.html
这个相当于MongoDB中的Document类，而且用法完全相同，这里可以参考https://docs.mongodb.org/getting-started/java/query/ mongo官方给的一些教程（增删改查都相似），我只给出一个查询和更改的例程
部分代码
DBObject dbo = new BasicDBObject(); dbo.put("name", "feng"); //放入你要查询的条件 DBCursor dc = db.find(dbo); //也可以db.find(new BasicDBObject().append(key,val));
//然后输出dc即可
WriteResult wr = db.update(new BasicDBObject().append("name", "hua"), new BasicDBObject().append("$set",new BasicDBObject().append("family.one", "BOB")));//这一种是仅更新family.one这一个字段 db.update(new BasicDBObject().append("name", "a"), new BasicDBObject().append("name", "nihao").append("phone", "123456")); //这一种相当于替换，比如原来的数据是{"name":"a","address":"china"}执行后变成了{"name":"nihao","phone":"123456"}
剩下的都很简单，就不再赘述了。
