配置数据源失败:没有指定'url'属性，无法配置嵌入式数据源

我正在用MongoDB做一个Spring Boot Batch示例，我已经启动了mongod服务器。

当我启动我的应用程序时，我得到下面的错误。

对这个问题有什么建议吗?

***************************
APPLICATION FAILED TO START
***************************

Description:

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

Reason: Failed to determine a suitable driver class


Action:

Consider the following:
    If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
    If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).

application.properties:

# Mongo database URI. Cannot be set with host, port and credentials.
spring.data.mongodb.uri=mongodb://localhost/test

pom.xml

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-batch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

我已经启动了mongod，输出如下:

C:\Users\pc>mongod
2018-07-07T14:39:39.223+0530 I JOURNAL  [initandlisten] journal dir=C:\data\db\journal
2018-07-07T14:39:39.230+0530 I JOURNAL  [initandlisten] recover : no journal files present, no recovery needed
2018-07-07T14:39:39.478+0530 I JOURNAL  [durability] Durability thread started
2018-07-07T14:39:39.589+0530 I CONTROL  [initandlisten] MongoDB starting : pid=11992 port=27017 dbpath=C:\data\db\ 64-bit host=DESKTOP-NQ639DU
2018-07-07T14:39:39.589+0530 I CONTROL  [initandlisten] targetMinOS: Windows 7/Windows Server 2008 R2
2018-07-07T14:39:39.591+0530 I CONTROL  [initandlisten] db version v3.0.5
2018-07-07T14:39:39.592+0530 I CONTROL  [initandlisten] git version: 8bc4ae20708dbb493cb09338d9e7be6698e4a3a3
2018-07-07T14:39:39.592+0530 I CONTROL  [initandlisten] build info: windows sys.getwindowsversion(major=6, minor=1, build=7601, platform=2, service_pack='Service Pack 1') BOOST_LIB_VERSION=1_49
2018-07-07T14:39:39.592+0530 I CONTROL  [initandlisten] allocator: tcmalloc
2018-07-07T14:39:39.593+0530 I CONTROL  [initandlisten] options: {}
2018-07-07T14:39:39.595+0530 I JOURNAL  [journal writer] Journal writer thread started
2018-07-07T14:39:40.485+0530 I NETWORK  [initandlisten] waiting for connections on port 27017
2018-07-07T14:40:39.140+0530 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:51340 #1 (1 connection now open)
2018-07-07T14:40:41.663+0530 I NETWORK  [conn1] end connection 127.0.0.1:51340 (0 connections now open)
2018-07-07T14:45:12.421+0530 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:51578 #2 (1 connection now open)
2018-07-07T14:45:12.870+0530 I NETWORK  [conn2] end connection 127.0.0.1:51578 (0 connections now open)
2018-07-07T14:46:21.734+0530 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:51591 #3 (1 connection now open)
2018-07-07T14:46:22.041+0530 I NETWORK  [conn3] end connection 127.0.0.1:51591 (0 connections now open)
2018-07-07T14:57:47.523+0530 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:52534 #4 (1 connection now open)
2018-07-07T14:57:47.910+0530 I NETWORK  [conn4] end connection 127.0.0.1:52534 (0 connections now open)

当前回答

如果数据源是在应用程序中定义的。资源，确保它位于src/main下面，并将其添加到构建路径。

2019-11-15 03:33:11

其他回答

这个方法对我来说很管用，适用于MySQL: (应用程序属性)

spring.datasource.url=jdbc:mysql://localhost:3306/db?useSSL=false&useUnicode=true&useJDBCCompliantTimezoneShift=true&
useLegacyDatetimeCode=false&serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=admin
spring.jpa.hibernate.ddl-auto=create
spring.jpa.show-sql=true

2020-01-07 12:41:23

我也有同样的问题，尝试了上面所有的建议，但都没有奏效。我把我的答案贴出来供将来的读者参考。之前它工作正常，但不知怎的它又出现了。我通过从pom.xml中删除一些不必要的插件和依赖来解决这个问题

First of all, I changed default packaging type to jar (Spring Boot Initializer gives pom in packaging) <packaging>jar</packaging> I added unintentional some plugins: <plugin> <artifactId>maven-war-plugin</artifactId> <configuration> <attachClasses>true</attachClasses> <webXml>target/web.xml</webXml> <webResources> <resource> <directory>src/main/webapp</directory> <filtering>true</filtering> </resource> </webResources> </configuration> </plugin>

我希望我的回答能帮助到一些人。

2019-12-28 14:30:13

一个选项解决方案，如果已经测试了所有最后的答案

如果你有title之类的错误

验证的.properties连接字符串是正确的。

然后在.pom文件中添加关于maven插件的代码块

        ...
    </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-resources-plugin</artifactId>
               <version>3.1.0</version>
        </plugin>

...

和更新项目。对我有用!!

我希望这能帮助你。

这一步你在这个链接页面找到。

执行goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources失败

https://exerror.com/failed-to-execute-goal-org-apache-maven-pluginsmaven-resources-plugin3-2-0resources/

在这里: Maven clean install: Failed to execute goal org.apache.maven.plugins: Maven -resources-plugin:3.2.0:resources

2022-06-07 18:04:06

我已经在spring引导应用程序的主类上添加了这个注释，一切都运行正常

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class })

2019-12-22 12:07:15

在pom.xml文件中始终保持更新后的spring框架版本。我用spring框架2.5.5版本创建了一个项目，当时运行得很好。几个月后，我发现它不能正常工作。然后我放了最新版本的spring框架。这样就有用了。

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>Updated version</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

2021-12-31 17:50:34

配置数据源失败:没有指定'url'属性，无法配置嵌入式数据源

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