域名預(yù)訂/競(jìng)價(jià),好“米”不錯(cuò)過
這篇文章主要介紹了springboot 沒法掃描到repository的解決,具有很好的參考價(jià)值,希望對(duì)大家有所幫助。一起跟隨小編過來看看吧
sprint boot2.0啟動(dòng)的時(shí)候報(bào)錯(cuò)!
A component required a bean of type 'XXX' that could not be found.
就是沒有掃描到我的repository包里的代碼
我先用@ComponentScan注解加上類所在的包名,沒有報(bào)錯(cuò),可以正常啟動(dòng)
但是坑爹的是@RestController注解下的Controller層的代碼沒有掃描到
就是說http://127.0.0.1:8080可以正常訪問,但是Controller層配置的@RequestMapping都匹配不到
折騰了好久好久,比如@ComponentScan在加上Controller層的包名還是不行(導(dǎo)致repository包掃描不到),使用包名.*模糊匹配也不行,好坑爹,說好的比spring mvc配置要簡(jiǎn)單的呢
最后我盯上了@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)注解
這個(gè)是因?yàn)樽铋_始的時(shí)候項(xiàng)目啟動(dòng)報(bào)錯(cuò)沒有數(shù)據(jù)庫相關(guān)配置
然后我刪掉了注解里的exclude,開始加上一些數(shù)據(jù)庫配置,比如
spring.datasource.url=jdbc:mysql://xxx.x.x.x/favorites?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC&useSSL=true
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
這里的數(shù)據(jù)庫不是我本機(jī)的數(shù)據(jù)庫,但是日志一直是報(bào)錯(cuò)連接的是連接我的本地?cái)?shù)據(jù)庫失敗
報(bào)錯(cuò)信息里查了一下DataSourceConfiguration這個(gè)類,猜測(cè)是配置的數(shù)據(jù)庫連接失敗之后開始連接localhost的數(shù)據(jù)庫
然后加上了hikari的一些配置就能正常啟動(dòng),連接我配置的數(shù)據(jù)庫,查詢sql都正常了
spring.datasource.type=com.zaxxer.hikari.HikariDataSource
spring.datasource.hikari.minimum-idle=5
spring.datasource.hikari.maximum-pool-size=15
spring.datasource.hikari.auto-commit=true
spring.datasource.hikari.idle-timeout=30000
spring.datasource.hikari.pool-name=DatebookHikariCP
spring.datasource.hikari.max-lifetime=1800000
spring.datasource.hikari.connection-timeout=30000
spring.datasource.hikari.connection-test-query=SELECT 1
定位過程真的是好心累!
補(bǔ)充:今天安裝spring的時(shí)候遇到一些缺少repository的問題
在安裝spring的時(shí)候會(huì)對(duì)其依賴的一些庫的進(jìn)行一些鏈接檢查,導(dǎo)致會(huì)報(bào)一些缺少repository的問題
No repository found containing: osgi.bundle,oracle.eclipse.tools.rest.lib,16.4.0.201705251324
No repository found containing: osgi.bundle,org.eclipse.cft.server.core,1.2.3.v201709130027
No repository found containing: osgi.bundle,org.eclipse.cft.server.rse,1.0.1.v201709130027
No repository found containing: osgi.bundle,org.eclipse.cft.server.standalone.core,1.0.4.v201709130027
No repository found containing: osgi.bundle,org.eclipse.cft.server.standalone.ui,1.0.4.v201709130027
No repository found containing: osgi.bundle,org.eclipse.cft.server.ui,1.0.110.v201709130027
stackvoerflow上找到了對(duì)應(yīng)的問題和解決方案:地址
解決方法:
Go to Help → Install new software → Here uncheck “Contact all update sites during install to find required software”
文章來源:腳本之家
來源地址:https://www.jb51.net/article/204991.htm
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