英文:
Gradle task replace string in .java file not working
问题
我有下面的 VersionConstants.java 文件：
public class VersionConstants {
/**
* This class does not need to be instantiated.
*/
private VersionConstants() { }
public static final String VERSION = "@VERSION@";
public static final String PATCH_LEVEL = "@PATCH_LEVEL@";
public static final String REVISION = "@REVISION@";
public static final String BUILDTIME = "@BUILDTIME@";
public static final String BUILDHOST = "@BUILDHOST@";
}
我按照这里的回答 https://stackoverflow.com/a/33475075/1665592 进行了操作，尝试如下：
task generateSources(type: Copy) {
from 'src/replaceme/VersionConstants.java'
into "$buildDir/generated-src"
filter(org.apache.tools.ant.filters.ReplaceTokens, tokens: [
"@VERSION@" : '1.0.0',
"@PATCH_LEVEL@" : '0.5',
...
])
}
但是，它只是复制了 VersionConstants.java 文件本身，并没有将关键字替换为所需的值，即 1.0.0 或 0.5 等。
为什么会这样？
英文:
I've below VersionConstants.java file..
public class VersionConstants {
/**
* This class does not need to be instantiated.
*/
private VersionConstants() { }
public static final String VERSION = "@VERSION@";
public static final String PATCH_LEVEL = "@PATCH_LEVEL@";
public static final String REVISION = "@REVISION@";
public static final String BUILDTIME = "@BUILDTIME@";
public static final String BUILDHOST = "@BUILDHOST@";
}
I followed this answer from here https://stackoverflow.com/a/33475075/1665592 and tried as
task generateSources(type: Copy) {
from 'src/replaceme/VersionConstants.java'
into "$buildDir/generated-src"
filter(org.apache.tools.ant.filters.ReplaceTokens, tokens: [
"@VERSION@" : '1.0.0',
"@PATCH_LEVEL@" : '0.5',
...
])
}
but, it is coping VersionConstants.java file as it is and not replacing the keywords with desired values i.e. 1.0.0 or 0.5 etc.
Why?
答案1
得分: 2
默认情况下，ReplaceTokens的beginToken为'@'，endToken为'@'。所以更改为
filter(ReplaceTokens, tokens: [
"VERSION" : '1.0.0',
"PATCH_LEVEL" : '0.5',
...
])
英文:
By default, ReplaceTokens has beginToken='@' and endToken='@'. So change to
filter(ReplaceTokens, tokens: [
"VERSION" : '1.0.0',
"PATCH_LEVEL" : '0.5',
...
])
答案2
得分: 0
明白，我刚刚将@VERSION@替换为VERSION，它就像魔法般地正常工作了！
task generateSources(type: Copy) {
from 'src/replaceme/VersionConstants.java';
into "$buildDir/generated-src";
filter(org.apache.tools.ant.filters.ReplaceTokens, tokens: [
"VERSION" : '1.0.0',
"PATCH_LEVEL" : '0.5',
...
])
}
英文:
Got it, I just replaced @VERSION@ with VERSION and it work like a charm!
task generateSources(type: Copy) {
from 'src/replaceme/VersionConstants.java'
into "$buildDir/generated-src"
filter(org.apache.tools.ant.filters.ReplaceTokens, tokens: [
"VERSION" : '1.0.0',
"PATCH_LEVEL" : '0.5',
...
])
}
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