Java 如何在jsp页面中获取maven项目版本号？
我正在开发一个java web应用程序，由maven2管理。我们不时地做一些更改，并希望发布新的版本，当然要有新的版本号。在主页（jsp）中，有如下文本Java 如何在jsp页面中获取maven项目版本号？,java,maven-2,Java,Maven 2,我正在开发一个java web应用程序，由maven2管理。我们不时地做一些更改，并希望发布新的版本，当然要有新的版本号。在主页（jsp）中，有如下文本 <b>version:</b> 2.3.3... 版本：2.3.3。。。 是否可能，每次我发布一个新版本时，我只更改pom.xml中的，jsp中的版本号可以由这个maven${project.version}自动填充 我尝试了maven profile，但它似乎不起作用 有什么想法吗 谢谢。当JSP被复制到目标位置
<b>version:</b> 2.3.3...
版本：2.3.3。。。
${project.version}<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
这可能很愚蠢，但我会使用类似于的
.properties public final static String projectVersion = "@PROJECT_VERSION@";
将这个值传递给JSP是很简单的。这篇文章已经创建了一段时间，但我希望它能有所帮助。它将获得从Maven生成的属性：
<%@ page import="java.util.*"%>
<%
java.io.InputStream inputStream = getServletContext().getResourceAsStream("/META-INF/maven/com.filhetallard.fam.ged/famdox/pom.properties");
Properties mavenProperties= new Properties();
mavenProperties.load(inputStream );
String version = (String) mavenProperties.get("version");
String name = (String) mavenProperties.get("artifactId");
%><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" lang="fr">
<head>
<title>Application <%= name %> v<%= version %></title>
应用程序v
- 您必须在代码中明确地编写groupId和artifactId
- 如果将web应用程序直接从target/部署到服务器，它将找不到该文件，因为在打包之前，该文件位于maven archiver目录中，而不是META-INF中
非战争项目 您还可以将此插件用于非war项目，例如验证JSP。它们将被编译，但不包括在最终工件中，并且不会生成或修改web.xml文件
如果只想验证和编译JSP而不在war项目中实际包含生成的代码，还可以使用将includeInProject参数设置为false。我也想做同样的事情，但我对现有的任何解决方案都不满意，包括使用Maven过滤方法，这是可以的，但是我试图在构建过程中避免修改现有的代码文件，所以我排除了这种方法，尽管这是一种合理的方法 我将Maven项目版本放入JSP文件的方法与从中获取的方法类似，只是我没有创建version.java文件，而是让Maven将版本写入属性文件，如“version.properties”，如下所示：
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.0</version>
<configuration>
<webResources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</webResources>
</configuration>
</plugin>
</plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<goals>
<goal>run</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<!-- Idea from link: http://stackoverflow.com/questions/2469922/generate-a-version-java-file-in-maven -->
<target>
<property name="resources.dir" value="${project.build.sourceDirectory}/../resources" />
<property name="version.filename" value="version.properties" />
<property name="buildtime" value="${maven.build.timestamp}" />
<echo message="Writing project version string to ${resources.dir}/${version.filename} ..." />
<echo file="${resources.dir}/${version.filename}" message="app.version = ${project.version}${line.separator}" />
</target>
</configuration>
</execution>
</executions>
</plugin>
app.version = 0.1
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.0</version>
<configuration>
<webResources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</webResources>
</configuration>
</plugin>
</plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<goals>
<goal>run</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<!-- Idea from link: http://stackoverflow.com/questions/2469922/generate-a-version-java-file-in-maven -->
<target>
<property name="resources.dir" value="${project.build.sourceDirectory}/../resources" />
<property name="version.filename" value="version.properties" />
<property name="buildtime" value="${maven.build.timestamp}" />
<echo message="Writing project version string to ${resources.dir}/${version.filename} ..." />
<echo file="${resources.dir}/${version.filename}" message="app.version = ${project.version}${line.separator}" />
</target>
</configuration>
</execution>
</executions>
</plugin>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Service Status</title>
</head>
<body>
<h1>Service API</h1>
<p>The service is up and running! (v${appVersion})</p>
</body>
</html>
服务状态
服务API
服务已启动并正在运行！（v${appVersion}）
注意：如果您不使用JavaConfig类来配置Spring框架，那么您可以对Spring XML配置执行相同的操作。您可以在JSP文件中使用它（在我的示例中是template.JSP）
<resources>
<resource>
<includes>
<include>template.jsp</include>
</includes>
<directory>src/main/webapp/jsp/template</directory>
<targetPath>jsp/template/</targetPath>
<filtering>true</filtering>
</resource>
</resources>
</build>
template.jsp
src/main/webapp/jsp/template
jsp/模板/
真的
<properties>
<!-- in my case injected by jenkins build job -->
<build.version>dev</build.version>
<build.branch>local</build.branch>
<build.revision />
</properties>
<%@ page language="java"
import="java.util.*,
org.springframework.context.ApplicationContext,
org.springframework.web.context.support.WebApplicationContextUtils,
de.smava.kredithai.cfg.BuildVersion" %>
<%
ApplicationContext applicationContext = WebApplicationContextUtils.getWebApplicationContext(pageContext.getServletContext());
BuildVersion buildVersion = (BuildVersion) applicationContext.getBean("buildVersion");
String branch = (String) buildVersion.getBuildBranch();
String version = (String) buildVersion.getBuildVersion();
String revision = (String) buildVersion.getBuildRevision();
if (request.getParameter("branch") != null){
out.println(branch);
} else if (request.getParameter("version") != null){
out.println(version);
} else if (request.getParameter("link") != null){
out.println("<a href=\"http://your_server_url"+branch+"/"+version+"\" >" + branch + " build " + version + "</a>");
} else {
out.println(branch + " build " + version + " rev. " + revision);
}
%>
使用
maven replacer插件
com.google.code.maven-replacer-plugin
替代者
（版本）
准备包装
代替
真的
target/someapp/jsp/helloWorld.jsp
target/someapp/jsp/helloWorld-updated.jsp
假的
$BUILD_编号$
${buildNumber}
现在，在指定文件中具有标记的任何位置，
$BUILD\u NUMBER$String version = getClass().getPackage().getImplementationVersion();
1.0.0-SNAPSHOTwar<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.5</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
</archive>
</configuration>
</plugin>
org.apache.maven.plugins
maven战争插件
2.5
真的
有很多方法可以传递值（如这些注释中所讨论的）。另一种方法（有其自身的优点和缺点）是将参数添加到POM文件的清单中：
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<archive>
<manifestEntries>
<Build-Version>${project.version}</Build-Version>
<Build-Date>${buildDateTime}</Build-Date>
<Build-Number>${buildNumber}</Build-Number>
<Build-Revision>${buildRevision}</Build-Revision>
</manifestEntries>
</archive>
</configuration>
</plugin>
org.apache.maven.plugins
maven战争插件
2.6
${project.version}
${buildDateTime}
${buildNumber}
${buildRevision}
<%
String buildVersion;
String buildDate;
String buildRevision;
String buildNumber;
Attributes attributes;
String version = "";
InputStream in = null;
// Get manifest attributes
try {
Manifest manifest;
in = pageContext.getServletContext().getResourceAsStream("/META-INF/MANIFEST.MF");
manifest = new Manifest(in);
attributes = manifest.getMainAttributes();
} catch (Exception ex) {
attributes = new Attributes();
attributes.put(new Attributes.Name("Build-Version"), "None (Inplace Deployment)");
} finally {
if (in != null) {
in.close();
}
}
buildVersion = attributes.getValue("Build-Version");
buildDate = attributes.getValue("Build-Date");
buildRevision = attributes.getValue("Build-Revision");
buildNumber = attributes.getValue("Build-Number");
%>
一个优点是，该信息也以易于查找的文档形式出现在清单中。一个缺点是需要打开并读取清单文件。很乐意提供帮助。这适用于在filter timesorry设置的任何属性，刚才我检查了错误的文件，并认为它可以工作。我添加了：src/main/webapp true和unde
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.5</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<archive>
<manifestEntries>
<Build-Version>${project.version}</Build-Version>
<Build-Date>${buildDateTime}</Build-Date>
<Build-Number>${buildNumber}</Build-Number>
<Build-Revision>${buildRevision}</Build-Revision>
</manifestEntries>
</archive>
</configuration>
</plugin>
<%
String buildVersion;
String buildDate;
String buildRevision;
String buildNumber;
Attributes attributes;
String version = "";
InputStream in = null;
// Get manifest attributes
try {
Manifest manifest;
in = pageContext.getServletContext().getResourceAsStream("/META-INF/MANIFEST.MF");
manifest = new Manifest(in);
attributes = manifest.getMainAttributes();
} catch (Exception ex) {
attributes = new Attributes();
attributes.put(new Attributes.Name("Build-Version"), "None (Inplace Deployment)");
} finally {
if (in != null) {
in.close();
}
}
buildVersion = attributes.getValue("Build-Version");
buildDate = attributes.getValue("Build-Date");
buildRevision = attributes.getValue("Build-Revision");
buildNumber = attributes.getValue("Build-Number");
%>