从 1.2.8.RELEASE 升级到 1.3.8.RELEASE 后无法读取 settings.xml答案

【问题标题】：Cannot read settings.xml after spring upgrade from 1.2.8.RELEASE to 1.3.8.RELEASE从 1.2.8.RELEASE 升级到 1.3.8.RELEASE 后无法读取 settings.xml
【发布时间】：2021-06-10 04:38:53
【问题描述】：

在将 Spring 父 POM 应用程序从 1.2.8.RELEASE 升级到 1.3.8.RELEASE 后，我注意到 settings.xml 中定义的属性无法读取。 spring 是否不支持从高于 1.2.8.RELEASE 的版本中读取 settings.xml。代码在 GIT 上可用：https://github.com/Ravivyas1989/demo

这是我的问题 POM.xml 的代码 sn-p 示例：

<?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 https://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>1.2.8.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
    <java.version>1.8</java.version>
</properties>


<repositories>
    <repository>
        <id>spring-release</id>
        <name>Spring Releases</name>
        <url>https://repo.spring.io/libs-release</url>
    </repository>

    <repository>
        <id>atlassian-public</id>
        <url>https://maven.atlassian.com/repository/public</url>
        <snapshots>
            <enabled>true</enabled>
            <updatePolicy>never</updatePolicy>
            <checksumPolicy>warn</checksumPolicy>
        </snapshots>
        <releases>
            <enabled>true</enabled>
            <checksumPolicy>warn</checksumPolicy>
        </releases>
    </repository>

    <repository>
        <id>jr-ce-snapshots</id>
        <name>JasperReports CE Snapshots</name>
        <url>http://jaspersoft.jfrog.io/jaspersoft/jr-ce-snapshots</url>
    </repository>

    <repository>
        <id>redshift</id>
        <url>http://redshift-maven-repository.s3-website-us-east-1.amazonaws.com/release</url>
    </repository>

    <repository>
        <id>project-repo</id>
        <url>file:${project.basedir}/src/main/resources/repo/</url>
    </repository>

    <repository>
        <id>jcenter-release</id>
        <name>jcenter</name>
        <url>http://jasperreports.sourceforge.net/maven2/</url>
    </repository>

    <!-- bouncy-gpg Bouncy Castle with GPG -->
    <repository>
        <id>bintray</id>
        <name>bintray</name>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
        <url>http://jcenter.bintray.com</url>
    </repository>

</repositories>

<dependencies>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.18</version>
    </dependency>

    
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
    </dependency>



    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    
    <dependency>
       <groupId>javax.xml.bind</groupId>
       <artifactId>jaxb-api</artifactId>
       <version>2.3.1</version>
    </dependency>
</dependencies>

<build>
    <finalName>api</finalName>
    <plugins>


        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-eclipse-plugin</artifactId>
            <configuration>
                <!-- Always download and attach dependencies source code -->
                <downloadSources>true</downloadSources>
                <downloadJavadocs>true</downloadJavadocs>
                <!-- To create project run: mvn eclipse:eclipse -->
                <wtpversion>2.0</wtpversion>
            </configuration>
        </plugin>



      <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.2</version>
            <configuration>
                <source>${java.version}</source>
                <target>${java.version}</target>
            </configuration>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-resources-plugin</artifactId>
            <version>2.6</version>
            <configuration>
                <!-- specify UTF-8, ISO-8859-1 or any other file encoding -->
                <encoding>${project.build.sourceEncoding}</encoding>
            </configuration>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <argLine>-Duser.timezone=US/Eastern ${argLine}</argLine>
                <!--<systemProperties>
                    <property>
                        <name>createJsonFiles</name>
                        <value>${createJsonFiles}</value>
                    </property>
                </systemProperties>-->

            </configuration>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-failsafe-plugin</artifactId>
            <version>2.19</version><!--$NO-MVN-MAN-VER$ -->
            <configuration>
                <parallel>methods</parallel>
                <useUnlimitedThreads>true</useUnlimitedThreads>
                <forkCount>1</forkCount>
                <argLine>-Duser.timezone=US/Eastern</argLine>
            </configuration>
            <executions>
                <execution>
                    <goals>
                        <goal>integration-test</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.jacoco</groupId>
            <artifactId>jacoco-maven-plugin</artifactId>
            <version>0.8.0</version>
            <configuration>
                <excludes>
                    <exclude>
                        **/reporting-functions/**
                    </exclude>
                </excludes>
            </configuration>
            <executions>
                <execution>
                    <goals>
                        <goal>prepare-agent</goal>
                    </goals>
                </execution>
                <execution>
                    <id>report</id>
                    <phase>prepare-package</phase>
                    <goals>
                        <goal>report</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>

    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
        </resource>

        <resource>
            <directory>src/main/reportTemplates</directory>
            <filtering>false</filtering>
            <excludes>
                <exclude>**/~$*.xlsx</exclude>
            </excludes>
        </resource>
    </resources>

</build>

这里是 DemoApplication.java

package com.example.demo;

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class DemoApplication {

public static void main(String[] args) {
    SpringApplication.run(DemoApplication.class, args);
}

}

这里是 settings.xml：

<settings>
<servers>

    <server>
        <id>snapshots</id>
        <username>${NEXUS_USERNAME}</username>
        <password>${NEXUS_PASSWORD}</password>
    </server>

    <server>
        <id>releases</id>
        <username>${NEXUS_USERNAME}</username>
        <password>${NEXUS_PASSWORD}</password>
    </server>

    <server>
        <id>configs</id>
        <username>${NEXUS_USERNAME}</username>
        <password>${NEXUS_PASSWORD}</password>
    </server>

</servers>

<profiles>

    <profile>
        <id>d02</id>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <properties>

            <!-- General Database Properties -->
            <db.userName>appservers</db.userName>
            <db.password>appservers</db.password>

        </properties>
    </profile>
</profiles>

Testcontroller.java

package com.example.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.env.Environment;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestController {

 @Autowired
 private Environment env;

    @RequestMapping(method = RequestMethod.GET, value = "${db.user}")
    public String testing1() {
    System.out.println("db.user is "+env.getProperty("db.user"));
    return "hostName";
    
    }
}

application.properties

db.user=${db.userName}
platform=testlab
server.port=9090

【问题讨论】：

我建议升级到最新版本（2.4.3 或者可能升级到 2.5.0-M2），因为 1.5.X 线自 2018 年 8 月起停产，我不知道 1.3 需要多久。 X线是生命终结...
我跳到了2.4.3，这个问题在更高的版本中也存在，而且我不想一次性进行这么高的升级，因为它会使代码不稳定。
您的代码因升级而变得不稳定？嗯。你有单元测试和集成测试吗？除此之外，不应在settings.xml 中定义属性，我强烈建议您使用不需要这些东西的存储库管理器：<url>file:${project.basedir}/src/main/resources/repo/</url> ...
是的，只是从 1.2.8.RELEAE 升级到 1.3.8.RELEASE 会导致问题。如您所见，它只是一个演示应用程序，我没有为它编写任何测试用例（但实际应用程序确实有 J 单元测试用例，与此问题无关）。我知道属性应该在 application.properties 中定义，但在我们当前的设置中它们就是这样做的。
我再说一遍，但我真的会假设settings.xml 已被实际读取，但信息在其他地方丢失了。

标签： maven spring-boot-maven-plugin

【解决方案1】：

“请注意 application.properties 文件中的 @property@ 而不是 ${property}.。

spring-boot-starter-parent pom 将标准 ${} 分隔符重新定义为 @:"

我的问题在这里得到解答：

Cannot get maven project.version property in a Spring application with @Value

【讨论】：

【解决方案2】：

Maven 总是从settings.xml 中读取属性。一定有其他错误。

【讨论】：