Java和Maven有点新，但是我试图让Maven处理数据库连接属性，因此我可以让Maven构建在dev / stage / prod环境之间更改它们，并且遇到过滤和资源问题。也不知道我在这里做错了什么。
POM文件：
<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> <groupId>com.comapny</groupId> <artifactId>reporting</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>reporting</name> <url>http://maven.apache.org</url> <properties> <db.jdbcUrl>jdbc:aURL</db.jdbcUrl> <db.jdbcUn>aUser</db.jdbcUn> <db.jdbcPw>aPassword</db.jdbcPw> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <springframework.version>4.2.3.RELEASE</springframework.version> <springframework.jdbc.version>4.1.4.RELEASE</springframework.jdbc.version> <hadoop.version>2.7.1.2.3.4.2-1</hadoop.version> <hbase.version>1.1.2.2.3.4.2-1</hbase.version> <phoenix.version>4.4.0.2.3.4.2-1</phoenix.version> <junit.version>4.12</junit.version> <mail.version>1.4.3</mail.version> </properties> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.0.RELEASE</version> </parent> <repositories> <repository> <id>github-releases</id> <url>http://oss.sonatype.org/content/repositories/github-releases/</url> </repository> <repository> <id>clojars.org</id> <url>http://clojars.org/repo</url> </repository> <repository> <id>hortonworks</id> <url>http://repo.hortonworks.com/content/repositories/releases/</url> </repository> <repository> <id>twitter4j</id> <url>http://twitter4j.org/maven2</url> </repository> </repositories> <dependencies> <!-- <dependency> <groupId>jdk.tools</groupId> <artifactId>jdk.tools</artifactId> <version>1.7.0_05</version> <scope>system</scope> <systemPath>${JAVA_HOME}/lib/tools.jar</systemPath> </dependency> --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <!-- <version>1.2.3.RELEASE</version> --> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> </dependency> <dependency> <groupId>xerces</groupId> <artifactId>xercesImpl</artifactId> <version>2.9.1</version> </dependency> <dependency> <groupId>xalan</groupId> <artifactId>xalan</artifactId> <version>2.7.1</version> </dependency> <dependency> <groupId>jdk.tools</groupId> <artifactId>jdk.tools</artifactId> <version>1.7.0_05</version> <scope>system</scope> <systemPath>${JAVA_HOME}/lib/tools.jar</systemPath> </dependency> <dependency> <groupId>org.apache.phoenix</groupId> <artifactId>phoenix-core</artifactId> <version>${phoenix.version}</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>log4j-over-slf4j</artifactId> </exclusion> <exclusion> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> </exclusion> <!-- <exclusion> <artifactId>joda-time</artifactId> <groupId>joda-time</groupId> </exclusion> --> </exclusions> </dependency> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> </dependency> <!-- Hadoop Dependencies --> <dependency> <groupId>org.mortbay.jetty</groupId> <artifactId>jetty-util</artifactId> <version>6.1.26</version> </dependency> <dependency> <groupId>org.mortbay.jetty</groupId> <artifactId>jetty-sslengine</artifactId> <version>6.1.26</version> </dependency> <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-client</artifactId> <version>${hadoop.version}</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> </exclusion> </exclusions> </dependency> <!-- HBase Dependcies --> <dependency> <groupId>org.apache.hbase</groupId> <artifactId>hbase-client</artifactId> <version>${hbase.version}</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>log4j-over-slf4j</artifactId> </exclusion> <exclusion> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> </exclusion> </exclusions> </dependency> <!-- Other --> <dependency> <groupId>javax.mail</groupId> <artifactId>mailapi</artifactId> <version>${mail.version}</version> </dependency> <dependency> <groupId>javax.mail</groupId> <artifactId>mail</artifactId> <version>${mail.version}</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> <!-- End of Other --> <!-- Log4J 2.x 2.4.1 --> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>com.github.omkreddy</groupId> <artifactId>log4j2-kafka-appender</artifactId> <version>1.0</version> </dependency> <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka-clients</artifactId> <version>0.9.0.0</version> </dependency> <!-- Test --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId> <version>2.7</version> <configuration> <encoding>UTF-8</encoding> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.5.1</version> <configuration> <source>1.8</source> <target>1.8</target> <showWarnings>false</showWarnings> </configuration> </plugin> </plugins> <resources> <resource> <directory>src/main/resources</directory> <filtering>true</filtering> <includes> <include>db.properties</include> </includes> </resource> </resources> <testResources> <testResource> <directory>src/test/resources</directory> <filtering>true</filtering> <includes> <include>db.properties</include> </includes> </testResource> </testResources> </build>
db.properties
jdbc.url= ${db.jdbcUrl} jdbc.username= ${db.jdbcUn} jdbc.password= ${db.jdbcPw}
Maven版本3.3.8
JDK 1.8.0-72
命令行
mvn test -P development -X
错误
java.lang.IllegalArgumentException: Could not resolve placeholder 'db.jdbcUrl' in string value "${db.jdbcUrl}"
任何帮助将不胜感激。
首先，您不需要使用个人资料。资源db.properties是测试资源，因此应位于src/test/resources而不是之下src/main/resources。使用配置文件会使您的构建复杂化，您只能将它们作为最后的条件。
src/test/resources
src/main/resources
您遇到此问题的原因是Spring Boot将令牌过滤器重新定义为@而不是default ${*}。从文档：
@
${*}
如果您是从spring-boot-starter-parentPOM 继承，则的默认过滤器令牌maven-resources- plugins已从更改${*}为@（即@maven.token@代替${maven.token}），以防止与Spring样式的占位符冲突。如果application.properties直接启用了Maven过滤，则可能还需要更改默认过滤器令牌以使用其他定界符。
spring-boot-starter-parent
maven-resources- plugins
@maven.token@
${maven.token}
application.properties
这意味着您应该改为：
jdbc.url= @db.jdbcUrl@ jdbc.username= @db.jdbcUn@ jdbc.password= @db.jdbcPw@
用于db.properties文件。
然后，您需要删除您的<resources>部分，并将其替换为：
<resources>
<testResources> <testResource> <directory>src/test/resources</directory> <filtering>true</filtering> <includes> <include>db.properties</include> </includes> </testResource> </testResources>
