Pertanyaan Penyaringan Sumber Daya Maven dengan Spring Boot: Tidak dapat menyelesaikan placeholder


Jenis baru untuk Java dan Maven, tapi saya mencoba untuk mendapatkan Maven untuk menangani properti koneksi database sehingga saya dapat membuat maven membangun perubahan antara lingkungan dev / stage / prod dan saya mengalami masalah dengan penyaringan dan sumber daya. Tidak yakin apa yang saya lakukan salah di sini juga.

POM File:

<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 versi 3.3.8

JDK 1.8.0-72

Garis komando

mvn test -P development -X

Kesalahan

 java.lang.IllegalArgumentException: Could not resolve placeholder 'db.jdbcUrl' in string value "${db.jdbcUrl}"

Bantuan apa pun akan sangat dihargai.


32
2018-02-15 19:00


asal


Jawaban:


Pertama-tama, Anda tidak perlu menggunakan profil. Sumber daya db.properties adalah sumber daya uji sehingga harus ditempatkan di bawah src/test/resources dan tidak di bawah src/main/resources. Menggunakan profil akan mempersulit bangunan Anda, Anda hanya harus menggunakan mereka sebagai kondisi terakhir.

Alasan Anda mengalami masalah ini adalah bahwa Spring Boot mengubah filter token menjadi @ bukan default ${*}. Dari dokumen:

Jika Anda mewarisi dari spring-boot-starter-parent POM, token filter default dari maven-resources-plugins telah diubah dari ${*} untuk @ (yaitu. @maven.token@ dari pada ${maven.token}) untuk mencegah konflik dengan placeholder Spring-style. Jika Anda telah mengaktifkan maven filtering untuk application.properties secara langsung, Anda mungkin ingin juga mengubah token filter default untuk menggunakan pembatas lain.

Ini berarti bahwa Anda seharusnya memiliki:

jdbc.url= @db.jdbcUrl@
jdbc.username= @db.jdbcUn@
jdbc.password= @db.jdbcPw@

Untuk db.properties mengajukan.

Maka Anda perlu menghapus Anda <resources> bagian dan menggantinya dengan:

<testResources>
    <testResource>
        <directory>src/test/resources</directory>
        <filtering>true</filtering>
        <includes>
            <include>db.properties</include>
        </includes>
    </testResource>
</testResources>

44
2018-02-15 22:07