MongoDB整合Spring实例详细讲解(含代码)
写这篇文章也做了下思考,首先是本人技术欠佳。但就是喜欢研究一些东西。因为在此之前有很多的朋友已经写过类似的,很多我也看过,但是讲解的不够深入。对有些朋友提出的问题不能给出答案。在这里,我根据我目前的能力对其进行整理。并最终运行成功。
在测试过程中出现过一下问题:
1、org/springframework/data/mapping/context/mappingcontextaware
2、src-resolve: cannot resolve the name 'repository:repository' to a(n) 'type definition'
以上都是版本不匹配引起的。特别是第二个错误我看有些解决时候提到了jpa,但是我这里没有使用jpa后来我是把spring-data-commons的包替换了个版本就不出现了。
我先说下我的开发环境:
myeclipse 6.5
mongodb 2.0.8
spring 3.0.4
最后就是下面2个(这两个版本不对就容易出现各种各样的,杂七杂八的问题) 这里我就给出我所采用的版本
spring-data-document
spring-data-commons
有所改变所有版本必须要对应好下面是jar下载地址
下载版本分别为:
spring-data-commons-dist-1.4.0.m1
spring-data-document-1.0.0.m2.zip
下面给出我工程的图片
然后就开始我们开发之旅吧!
首先新建application.xml配置文件
<?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" xsi:schemalocation="http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.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/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <mongo:mongo host="192.168.0.138" port="27017"/> <bean id="mongotemplate" class="org.springframework.data.document.mongodb.mongotemplate"> <constructor-arg ref="mongo"/> <constructor-arg name="databasename" value="db"/> <constructor-arg name="defaultcollectionname" value="person" /> </bean> <bean id="personrepository" class="com.mongo.dao.impl.personrepository"> <property name="mongotemplate" ref="mongotemplate"></property> </bean> <context:annotation-config /> </beans>
然后编写操作mongodb的接口
/** * abstractrepository.java */ package com.mongo.dao; import java.util.list; import com.mongo.bean.person; /** * todo * @author cuiran * @version todo */ public interface abstractrepository { /** * *<b>function:</b>添加对象 * @author cuiran * @createdate 2012-12-12 11:41:30 */ public void insert(person person); /** * *<b>function:</b>根据id查找对象 * @author cuiran * @createdate 2012-12-12 11:41:41 */ public person findone(string id); /** * *<b>function:</b>查询所有 * @author cuiran * @createdate 2012-12-12 16:26:06 */ public list<person> findall(); public list<person> findbyregex(string regex); /** * *<b>function:</b>删除指定的id对象 * @author cuiran * @createdate 2012-12-12 16:26:16 */ public void removeone(string id); /** * *<b>function:</b>删除所有 * @author cuiran * @createdate 2012-12-12 16:25:40 */ public void removeall(); /** * 通过id找到并修改 *<b>function:</b> * @author cuiran * @createdate 2012-12-12 16:25:51 */ public void findandmodify(string id); }
再写对应接口的实现类:
/** * personrepository.java */ package com.mongo.dao.impl; import java.util.list; import java.util.regex.pattern; import org.springframework.data.document.mongodb.mongotemplate; import org.springframework.data.document.mongodb.query.criteria; import org.springframework.data.document.mongodb.query.query; import org.springframework.data.document.mongodb.query.update; import com.mongo.bean.person; import com.mongo.dao.abstractrepository; /** * todo * @author cuiran * @version todo */ public class personrepository implements abstractrepository { private mongotemplate mongotemplate; /* (non-javadoc) * @see com.mongo.dao.abstractrepository#findall() */ @override public list<person> findall() { // todo auto-generated method stub return getmongotemplate().find(new query(), person.class); } /* (non-javadoc) * @see com.mongo.dao.abstractrepository#findandmodify(java.lang.string) */ @override public void findandmodify(string id) { // todo auto-generated method stub //new query(criteria.where("id").is(id)), new update().inc("age", 3) getmongotemplate().updatefirst(new query(criteria.where("id").is(id)), new update().inc("age", 3)); } /* (non-javadoc) * @see com.mongo.dao.abstractrepository#findbyregex(java.lang.string) */ @override public list<person> findbyregex(string regex) { // todo auto-generated method stub pattern pattern = pattern.compile(regex,pattern.case_insensitive); criteria criteria = new criteria("name").regex(pattern.tostring()); return getmongotemplate().find(new query(criteria), person.class); } /* (non-javadoc) * @see com.mongo.dao.abstractrepository#findone(java.lang.string) */ @override public person findone(string id) { // todo auto-generated method stub return getmongotemplate().findone(new query(criteria.where("id").is(id)), person.class); } /* (non-javadoc) * @see com.mongo.dao.abstractrepository#insert(com.mongo.bean.person) */ @override public void insert(person person) { // todo auto-generated method stub getmongotemplate().insert(person); } /* (non-javadoc) * @see com.mongo.dao.abstractrepository#removeall() */ @override public void removeall() { // todo auto-generated method stub list<person> list = this.findall(); if(list != null){ for(person person : list){ getmongotemplate().remove(person); } } } /* (non-javadoc) * @see com.mongo.dao.abstractrepository#removeone(java.lang.string) */ @override public void removeone(string id) { // todo auto-generated method stub criteria criteria = criteria.where("id").in(id); if(criteria == null){ query query = new query(criteria); if(query != null && getmongotemplate().findone(query, person.class) != null) getmongotemplate().remove(getmongotemplate().findone(query, person.class)); } } /** * @return the mongotemplate */ public mongotemplate getmongotemplate() { return mongotemplate; } /** * @param mongotemplate the mongotemplate to set */ public void setmongotemplate(mongotemplate mongotemplate) { this.mongotemplate = mongotemplate; } }
这里也给出对应person对象代码
/** * person.java */ package com.mongo.bean; import java.io.serializable; /** * todo * @author cuiran * @version todo */ public class person implements serializable { /** * */ private static final long serialversionuid = 3617931430808763429l; private string id; private string name; private int age; public person() { super(); } public person(string id, string name, int age) { super(); this.id = id; this.name = name; this.age = age; } /** * @return the id */ public string getid() { return id; } /** * @param id the id to set */ public void setid(string id) { this.id = id; } /** * @return the name */ public string getname() { return name; } /** * @param name the name to set */ public void setname(string name) { this.name = name; } /** * @return the age */ public int getage() { return age; } /** * @param age the age to set */ public void setage(int age) { this.age = age; } /** * * @param name * @param age */ public person(string name, int age) { super(); this.name = name; this.age = age; } public string tostring() { return "person[id="+id+",name="+name+",age="+age+"]"; } }
最后写出我们的测试类开始进行测试
/** * mongotest.java */ package com.mongo.test; import java.util.list; import org.apache.commons.logging.log; import org.apache.commons.logging.logfactory; import org.springframework.context.applicationcontext; import org.springframework.context.support.classpathxmlapplicationcontext; import com.mongo.bean.person; import com.mongo.dao.abstractrepository; import com.mongo.dao.impl.personrepository; /** * todo * @author cuiran * @version todo */ public class mongotest { private static log log = logfactory.getlog(mongotest.class.getname()); private abstractrepository pr=null; /** * *<b>function:</b> * @author cuiran * @createdate 2012-12-12 16:08:02 */ public void init(){ log.debug("开始启动"); applicationcontext ctx = new classpathxmlapplicationcontext("applicationcontext.xml"); pr= (personrepository)ctx.getbean("personrepository"); } /** * *<b>function:</b>添加 * @author cuiran * @createdate 2012-12-12 16:11:01 */ public void insert(){ person p=new person("cuiran",27); pr.insert(p); log.debug("添加成功"); } /** * *<b>function:</b>根据输入的id查找对象 * @author cuiran * @createdate 2012-12-12 16:24:10 */ public void findone(){ string id="50c83cb552c2ceb0463177d6"; person p= pr.findone(id); log.debug(p); } /** * *<b>function:</b>查询所有 * @author cuiran * @createdate 2012-12-12 16:08:54 */ public void listall(){ list<person> list=pr.findall(); log.debug("查询结果如下:"); for (person p:list){ log.debug(p.tostring()); } } /** * *<b>function:</b>测试方法 * @author cuiran * @createdate 2012-12-12 16:11:37 */ public void start(){ init(); //insert(); //listall(); findone(); } /** *<b>function:</b>main函数 * @author cuiran * @createdate 2012-12-12 11:54:30 */ public static void main(string[] args) { // todo auto-generated method stub mongotest t=new mongotest(); t.start(); } }
运行出现一下日志,就没什么问题。
2012-12-12 16:23:59:debug com.mongo.test.mongotest - 开始启动 2012-12-12 16:23:59:info org.springframework.context.support.classpathxmlapplicationcontext - refreshing org.springframework.context.support.classpathxmlapplicationcontext@253498: startup date [wed dec 12 16:23:59 cst 2012]; root of context hierarchy 2012-12-12 16:23:59:info org.springframework.beans.factory.xml.xmlbeandefinitionreader - loading xml bean definitions from class path resource [applicationcontext.xml] 2012-12-12 16:24:00:info org.springframework.beans.factory.support.defaultlistablebeanfactory - pre-instantiating singletons in org.springframework.beans.factory.support.defaultlistablebeanfactory@12a0f6c: defining beans [mongo,mongotemplate,personrepository,org.springframework.context.annotation.internalconfigurationannotationprocessor,org.springframework.context.annotation.internalautowiredannotationprocessor,org.springframework.context.annotation.internalrequiredannotationprocessor,org.springframework.context.annotation.internalcommonannotationprocessor]; root of factory hierarchy 2012-12-12 16:24:00:debug com.mongo.test.mongotest - person[id=50c83cb552c2ceb0463177d6,name=cuiran,age=27]
在此附上demo源码:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。