1.配置文件
<mongo:mongo-client credentials="用户名:密码@用户名所在的数据库" host="${mongo.host}" port="${mongo.port}"/>
<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
<constructor-arg name="mongo" ref="mongo"/>
<constructor-arg name="databaseName" value="数据库名称"/>
</bean>
上面是最简单的配置了,起因是这样的...最近项目想用 mongodb 了..然后我这个人喜欢尝新,就下载了最新版本的 mongodb,v3.4.2.去官网看了下.只能使用最新的驱动包,等下,我去截个图.没图你说个 JB
同学们,来划重点,尝鲜一时爽.文档找死你.当然...我 spring-data-mongodb 用的也是最新的.哈哈哈哈哈哈哈哈哈,一开始我去百度找配置..也上过谷歌..
虽然配置好像成功了的样子,控制台也一直输出一下内容
[DEBUG] [09:39:38] org.mongodb.driver.cluster - Checking status of 10.0.0.11:27017
[DEBUG] [09:39:38] org.mongodb.driver.cluster - Updating cluster description to {type=STANDALONE, servers=[{address=10.0.0.11:27017, type=STANDALONE, roundTripTime=0.7 ms, state=CONNECTED}]
[DEBUG] [09:39:48] org.mongodb.driver.cluster - Checking status of 10.0.0.11:27017
[DEBUG] [09:39:48] org.mongodb.driver.cluster - Updating cluster description to {type=STANDALONE, servers=[{address=10.0.0.11:27017, type=STANDALONE, roundTripTime=0.7 ms, state=CONNECTED}]
这说明你连接上了.但是我 tm 写入不了任何数据啊!后悔当初没记录下来错误....稍等,我翻下我的百度历史
Caused by: com.mongodb.MongoQueryException: Query failed with error code 13 and error message 'not authorized on NEWTest to execute command { find: "usersD", filter: { username: "Dhara" }, limit: 1, singleBatch: true }' on server 127.0.0.1:27017
at com.mongodb.operation.FindOperation$1.call(FindOperation.java:492)
at com.mongodb.operation.FindOperation$1.call(FindOperation.java:482)
at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:239)
at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:212)
at com.mongodb.operation.FindOperation.execute(FindOperation.java:482)
at com.mongodb.operation.FindOperation.execute(FindOperation.java:79)
at com.mongodb.Mongo.execute(Mongo.java:772)
at com.mongodb.Mongo$2.execute(Mongo.java:759)
at com.mongodb.DBCollection.findOne(DBCollection.java:777)
at com.mongodb.DBCollection.findOne(DBCollection.java:747)
at com.mongodb.DBCollection.findOne(DBCollection.java:694)
at org.springframework.data.mongodb.core.MongoTemplate$FindOneCallback.doInCollection(MongoTemplate.java:2143)
at org.springframework.data.mongodb.core.MongoTemplate$FindOneCallback.doInCollection(MongoTemplate.java:2127)
at org.springframework.data.mongodb.core.MongoTemplate.executeFindOneInternal(MongoTemplate.java:1901)
... 4 more
[stackoverflow上的问题]http://stackoverflow.com/questions/38454541/query-failed-with-error-code-13-and-error-message-not-authorized-on-db-to-exe
看完我也是一脸蒙逼,不信你看下图,IDE 报错
总之,不能太相信 IDE ,然后我尝试性的启动了项目.卧槽!可以启动,而且还写入数据了...待着好奇心里,我点开了xsd约束文档
<xsd:element name="mongo-client" type="mongoClientType">
<xsd:annotation>
<xsd:documentation source="org.springframework.data.mongodb.core.MongoClientFactoryBean"><![CDATA[
Defines a MongoClient instance used for accessing MongoDB.
]]></xsd:documentation>
<xsd:appinfo>
<tool:annotation>
<tool:exports type="com.mongodb.MongoClient"/>
</tool:annotation>
</xsd:appinfo>
</xsd:annotation>
</xsd:element>
很明显.他告诉我们会导出一个 com.mongodb.MongoClient 类型的对象
可它不是 mongo对象好么!根据我多个月来的编码经验...这家伙不是继承了 Mongo 就是实现了 Mongo.很明显...是继承,自己翻开源码看吧...
然后我在想把 ref 里的 mongo 换成 mongoClient 可行不可行,我现在就去试下
Cannot resolve reference to bean 'mongoClient' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'mongoClient' available
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
