From 90399a560d9cdcdf58123ead422b1b9dcb28f2f9 Mon Sep 17 00:00:00 2001
From: qibaoguang <qibaoguang@gmail.com>
Date: Sun, 1 Mar 2015 20:42:05 +0800
Subject: [PATCH] Update and rename 40.4.1. Automatically expand info
 properties at build time to 40.4.1. Automatically expand info properties at
 build time.md

---
 ...cally expand info properties at build time |  0
 ...ly expand info properties at build time.md | 55 +++++++++++++++++++
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 delete mode 100644 V. Spring Boot Actuator: Production-ready features/40.4.1. Automatically expand info properties at build time
 create mode 100644 V. Spring Boot Actuator: Production-ready features/40.4.1. Automatically expand info properties at build time.md

diff --git a/V. Spring Boot Actuator: Production-ready features/40.4.1. Automatically expand info properties at build time b/V. Spring Boot Actuator: Production-ready features/40.4.1. Automatically expand info properties at build time
deleted file mode 100644
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diff --git a/V. Spring Boot Actuator: Production-ready features/40.4.1. Automatically expand info properties at build time.md b/V. Spring Boot Actuator: Production-ready features/40.4.1. Automatically expand info properties at build time.md
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+### 40.4.1. 在构建时期自动扩展info属性
+
+你可以使用已经存在的构建配置自动扩展info属性，而不是对在项目构建配置中存在的属性进行硬编码。这在Maven和Gradle都是可能的。
+
+**使用Maven自动扩展属性**
+
+对于Maven项目，你可以使用资源过滤来自动扩展info属性。如果使用spring-boot-starter-parent，你可以通过`@..@`占位符引用Maven的'project properties'。
+```java
+project.artifactId=myproject
+project.name=Demo
+project.version=X.X.X.X
+project.description=Demo project for info endpoint
+info.build.artifact=@project.artifactId@
+info.build.name=@project.name@
+info.build.description=@project.description@
+info.build.version=@project.version@
+```
+**注**：在上面的示例中，我们使用project.*来设置一些值以防止由于某些原因Maven的资源过滤没有开启。Maven目标`spring-boot:run`直接将`src/main/resources`添加到classpath下（出于热加载的目的）。这就绕过了资源过滤和自动扩展属性的特性。你可以使用`exec:java`替换该目标或自定义插件的配置，具体参考[plugin usage page](http://docs.spring.io/spring-boot/docs/1.3.0.BUILD-SNAPSHOT/maven-plugin/usage.html)。
+
+如果你不使用starter parent，在你的pom.xml你需要添加（处于<build/>元素内）：
+```xml
+<resources>
+    <resource>
+        <directory>src/main/resources</directory>
+        <filtering>true</filtering>
+    </resource>
+</resources>
+```
+和（处于<plugins/>内）：
+```xml
+<plugin>
+    <groupId>org.apache.maven.plugins</groupId>
+    <artifactId>maven-resources-plugin</artifactId>
+    <version>2.6</version>
+    <configuration>
+        <delimiters>
+            <delimiter>@</delimiter>
+        </delimiters>
+    </configuration>
+</plugin>
+```
+**使用Gradle自动扩展属性**
+
+通过配置Java插件的processResources任务，你也可以自动使用来自Gradle项目的属性扩展info属性。
+```java
+processResources {
+    expand(project.properties)
+}
+```
+然后你可以通过占位符引用Gradle项目的属性：
+```java
+info.build.name=${name}
+info.build.description=${description}
+info.build.version=${version}
+```