springmvc+monggodb简单小例子
mongodb下载地址：
http://www.veryhuo.com/down/html/mongodb.html
1 自定义安装到C:\mongodb目录下。
2 手动在C:\mongodb目录下创建data\db和logs两个文件夹
3 以管理员身份启动cmd,进入到c:\mongodb\bin为当前目录。
c:\mongodb\bin> echo logpath=c:\mongodb\logs\mongodb.log> c:\mongodb\mongod.cfg
c:\mongodb\bin> echo dbpath=c:\mongodb\data\db>> c:\mongodb\mongod.cfg
4
C:\mongodb\bin>sc create MongoDB binPath= "\"c:\mongodb\bin\mongod.exe\" --service --config=\"c:\mongodb\mongod.cfg\"" DisplayName= "MongoDB 2.6 Stardard" start= "auto"
此时会提示 CreateService 成功
注意输入命令中每个"="后面，都要有个空格，除了--config外
5 net start MongoDB
此时，就成功的创建了自动运行的MongoDB服务。
安装mongodb客户端
下载地址: http://www.cncrk.com/downinfo/44839.html
创建maven工程
pom.xml
<span style="font-size:10px;"><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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>gy</groupId> <artifactId>MongDB</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>MongDB Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>3.2.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>3.2.7.RELEASE</version> </dependency> <!-- mongodb spring --> <!-- <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-mongodb</artifactId> <version>1.6.1.RELEASE</version> </dependency> --> <dependency> <groupId>org.mongodb</groupId> <artifactId>mongo-java-driver</artifactId> <version>2.10.1</version> </dependency> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-mongodb</artifactId> <version>1.2.1.RELEASE</version> </dependency> </dependencies> <build> <finalName>MongDB</finalName> </build> </project></span><span style="font-size:48px;"> </span>
mongodb.properties
mongo.host=localhost mongo.port=27017 mongo.dbName=test
spring-datasource.xml
<span style="font-size:10px;"><?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:util="http://www.springframework.org/schema/util" xmlns:jdbc="http://www.springframework.org/schema/jdbc" 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.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd"> <!-- mongo db配置 --> <mongo:mongo host="localhost" port="27017" /> <!-- mongo的工厂，通过它来取得mongo实例,dbname为mongodb的数据库名，没有的话会自动创建 --> <mongo:db-factory dbname="test" mongo-ref="mongo" /> <!-- mongodb的主要操作对象，所有对mongodb的增删改查的操作都是通过它完成 --> <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> <constructor-arg name="mongoDbFactory" ref="mongoDbFactory" /> </bean> <!-- 映射转换器，扫描back-package目录下的文件，根据注释，把它们作为mongodb的一个collection的映射 --> <mongo:mapping-converter base-package="com.mongodb.entity" /> <!-- mongodb bean的仓库目录，会自动扫描扩展了MongoRepository接口的接口进行注入 --> <mongo:repositories base-package="com.mongodb.service" /> <context:annotation-config /> </beans></span>
实体类 User.java
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Document(collection="t_user")
public class User implements Serializable{
private static final long serialVersionUID = -6270568573087300894L;
@Id
private String id;
private String name;
private Integer age;
private Double height;
private Integer type;
private String total;
UserService.java
@Service("userService")
public class UserService {
@Autowired
private MongoTemplate mongoTemplate;
public List<User> find(){
return mongoTemplate.findAll(User.class);
}
/**
* 添加对象
* @param user
* @return
*/
public Boolean insert(User user){
Boolean result=false;
try{
mongoTemplate.insert(user);
result=true;
}catch(Exception e){
e.printStackTrace();
}
return result;
}
/**
* 删除对象
* @param user
* @return
*/
public Boolean delete(User user) {
Boolean result=false;
try{
mongoTemplate.remove(user);
result=true;
}catch(Exception e){
e.printStackTrace();
}
return result;
}
/**
* 批量添加对象
* @param users
* @return
*/
public Boolean insertAll(List<User> users) {
Boolean result=false;
try{
mongoTemplate.insertAll(users);
result=true;
}catch(Exception e){
e.printStackTrace();
}
return result;
}
/**
* 统计
* @param users
* @return
*/
public Boolean count() {
Boolean result=false;
try{
DBCollection coll = mongoTemplate.getCollection("t_user");
String map = "function() { emit(this._class, {count:1});}";
String reduce = "function(key, values) {" +
"var total = 0;" +
"for(var i=0;i<values.length;i++){" +
"total += values[i].count;" +
"}return {count:total};}";
String result2 = "resultCollection";
MapReduceOutput mapReduceOutput = coll.mapReduce(map,
reduce.toString(), result2, null);
DBCollection resultColl = mapReduceOutput.getOutputCollection();
DBCursor cursor = resultColl.find();
while (cursor.hasNext()) {
System.out.println(cursor.next());
}
result=true;
}catch(Exception e){
e.printStackTrace();
}
return result;
}
/**
* 求和
* @return
*/
public Boolean sum() {
Boolean result=false;
try{
DBCollection coll = mongoTemplate.getCollection("t_user");
String map = "function() { emit(this._class, {sum:this.age});}";
String reduce = "function(key, values) {" +
"var total = 0;" +
"for(var i=0;i<values.length;i++){" +
"total += values[i].sum;" +
"}return {sum:total};}";
String result2 = "resultCollection";
MapReduceOutput mapReduceOutput = coll.mapReduce(map,
reduce.toString(), result2, null);
DBCollection resultColl = mapReduceOutput.getOutputCollection();
DBCursor cursor = resultColl.find();
while (cursor.hasNext()) {
DBObject obj=cursor.next();
System.out.println(obj.get("value"));
}
result=true;
}catch(Exception e){
e.printStackTrace();
}
return result;
}
/**
* 最大值
* @return
*/
public Boolean max() {
Boolean result=false;
try{
Query query =new Query();
query.with(new Sort(Direction.DESC, "age"));
query.limit(1);
User u=mongoTemplate.findOne(query, User.class);
System.out.println(u.getAge());
result=true;
}catch(Exception e){
e.printStackTrace();
}
return result;
}
/**
* 最小值
* @return
*/
public Boolean min() {
Boolean result=false;
try{
Query query =new Query();
query.with(new Sort(Direction.ASC, "age"));
query.limit(1);
User u=mongoTemplate.findOne(query, User.class);
System.out.println(u.getAge());
result=true;
}catch(Exception e){
e.printStackTrace();
}
return result;
}
/**
* 平均值
* @return
*/
public Boolean avg() {
Boolean result=false;
try{
DBCollection coll = mongoTemplate.getCollection("t_user");
String map = "function() { emit(this._class, {avg:this.age});}";
String reduce = "function(key, values) {" +
"var total = 0;" +
"for(var i=0;i<values.length;i++){" +
"total += values[i].avg;" +
"}return {avg:total/values.length};}";
String result2 = "resultCollection";
MapReduceOutput mapReduceOutput = coll.mapReduce(map,
reduce.toString(), result2, null);
DBCollection resultColl = mapReduceOutput.getOutputCollection();
DBCursor cursor = resultColl.find();
while (cursor.hasNext()) {
DBObject obj=cursor.next();
System.out.println(obj.get("value"));
}
result=true;
}catch(Exception e){
e.printStackTrace();
}
return result;
}
}
Test类
public class TestMongoDB {
private ClassPathXmlApplicationContext context;
UserService service=null;
public TestMongoDB() {
String configLocation = "spring-global.xml";
context = new ClassPathXmlApplicationContext(configLocation);
context.start();
service=(UserService)context.getBean("userService");
}
/**
* 添加一个对象
*/
public void insertOne(){
User user =new User();
user.setId("4");
user.setName("333");
user.setAge(50);
user.setHeight(208.8d);
user.setType(1);
System.out.println(service.insert(user));
}
/**
* 删除一个对象
*/
public void deleteOne(){
User user =new User();
for(Integer i=0;i<10;i++){
user.setId(i.toString());
System.out.println(service.delete(user));
}
}
/**
* 添加对象集合
*/
public void insertAll(){
List<User> users=new ArrayList<User>();
User user =null;
for(Integer i=0;i<10;i++){
user=new User();
user.setId(i.toString());
user.setName("张"+i);
user.setAge(i);
user.setHeight(160d+i);
user.setType(i/2==0?0:1);
users.add(user);
}
System.out.println(service.insertAll(users));
}
public void Count(){
System.out.println(service.count());
}
public void Sum(){
System.out.println(service.sum());
}
@Test
public void Max(){
System.out.println(service.max());
}
public void Min(){
System.out.println(service.min());
}
public void Avg(){
System.out.println(service.avg());
}
}