<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.9.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>leave</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>leave</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring-boot-starter-basic</artifactId>
<version>6.0.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
------上面是spring boot 的pom.xml
在application.properties配置好資料庫引數就可以正常運行。我的想法是在程式啟動的時候不連接資料庫，在程式運行的程序中按需連接到資料庫，但我洗掉了資料可引數的時候就報錯了！！！資訊如下：
Description:
Cannot determine embedded database driver class for database type NONE
Action:
If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
在網上找到的解決方案是添加注解(分別如下嘗試都出錯)：
1.-------------------------
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class,HibernateJpaAutoConfiguration.class})
@SpringBootApplication
2.---------------------------------------
@SpringBootApplication(exclude={DataSourceAutoConfiguration.class})
3.------------------------------------
@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class,DataSourceTransactionManagerAutoConfiguration.class,HibernateJpaAutoConfiguration.class})
錯誤資訊如下：
Description:
Parameter 0 of method springProcessEngineConfiguration in org.activiti.spring.boot.JpaProcessEngineAutoConfiguration$JpaConfiguration required a bean of type 'javax.sql.DataSource' that could not be found.
- Bean method 'dataSource' not loaded because @ConditionalOnProperty (spring.datasource.jndi-name) did not find property 'jndi-name'
- Bean method 'dataSource' not loaded because @ConditionalOnBean (types: org.springframework.boot.jta.XADataSourceWrapper; SearchStrategy: all) did not find any beans
Action:
Consider revisiting the conditions above or defining a bean of type 'javax.sql.DataSource' in your configuration
uj5u.com熱心網友回復：
除非你自己改原始碼，自動配置會在啟動時連資料庫，確定資料庫型別，表定義是什么版本，與代碼庫中的是否一致，是否需要升級表結構等等，看看原始碼就知道了。
uj5u.com熱心網友回復：
我想問為什么啟動一次他就要部署一次吶，act_re_deployment表創建資料SpringAutoDeployment資料，我看啦原始碼，他自動呼叫啦SpringProcessEngineConfiguration這個方法然后執行啦DeploymentBuilder deploymentBuilder = repositoryService.createDeployment().enableDuplicateFiltering().name(deploymentNameHint);，這個deploymentNameHint的值就是原始碼寫的SpringAutoDeployment，怎么能不讓他自動呼叫，只有我部署請求的時候才在act_re_deployment表創建資料轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/172412.html
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