Xtext- doGenerate 在作为战争文件运行时返回 xtend 符号

Question

我正在开发一个Xtext项目，在我的Generator.xtend中，我制作了一个python脚本。当我在 Eclipse 中运行ServerLaucher.xtend时，一切正常，但是如果我生成war文件并在 Tomcat 中运行它，脚本将包含 xtend 符号。这是我生成python脚本的代码：

def compile(Main main)'''
  #! /usr/bin/env python
  ...
    «FOR to : main.takeoff» 
        takeoff = rospy.Publisher('/ardrone/takeoff', Empty, queue_size=1)
        while takeoff.get_num_connections() < 1:
            rospy.sleep(0.1)
        takeoff.publish(empty)
        rospy.sleep(5)
    «ENDFOR»
'''
override void doGenerate(Resource resource, IFileSystemAccess2 fsa, IGeneratorContext context) {
    var result = "";
    for(main : resource.allContents.toIterable.filter(Main)) {
        result = main.compile.toString; 
        System.out.println(result);
    }

如果在 Eclipse 中运行，则结果包含：

#! /usr/bin/env python
takeoff = rospy.Publisher('/ardrone/takeoff', Empty, queue_size=1)
while takeoff.get_num_connections() < 1:
    rospy.sleep(0.1)
takeoff.publish(empty)
rospy.sleep(5)

虽然雄猫生产：

#! /usr/bin/env python
�FOR to : main.takeoff�  
takeoff = rospy.Publisher('/ardrone/takeoff', Empty, queue_size=1)
while takeoff.get_num_connections() < 1:
    rospy.sleep(0.1)
takeoff.publish(empty)
rospy.sleep(5)
�ENDFOR�

编辑：这是我的主要build.gradle文件：

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'org.xtext:xtext-gradle-plugin:2.0.4'
    }
}
subprojects {
    ext.xtextVersion = '2.17.0'
    repositories {
        jcenter()
    }
    apply plugin: 'java'
    dependencies {
        compile platform("org.eclipse.xtext:xtext-dev-bom:${xtextVersion}")
    }
    apply plugin: 'org.xtext.xtend'
    apply from: "${rootDir}/gradle/source-layout.gradle"
    apply plugin: 'eclipse'
    group = 'ic.ac.uk.mydsl'
    version = '1.0.0-SNAPSHOT'
    sourceCompatibility = '1.8'
    targetCompatibility = '1.8'
    configurations.all {
        exclude group: 'asm'
    }
}

编辑2：我在其中一个子项目中的build.gradle文件：

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'org.xtext:xtext-gradle-plugin:2.0.4'
    }
}
subprojects {
    ext.xtextVersion = '2.17.0'
    repositories {
        jcenter()
    }

    tasks.withType(JavaCompile) {
        options.encoding = 'UTF-8' 
    }
    apply plugin: 'java'
    dependencies {
        compile platform("org.eclipse.xtext:xtext-dev-bom:${xtextVersion}")
    }
    apply plugin: 'org.xtext.xtend'
    apply from: "${rootDir}/gradle/source-layout.gradle"
    apply plugin: 'eclipse'
    group = 'ic.ac.uk.xdrone'
    version = '1.0.0-SNAPSHOT'
    sourceCompatibility = '1.8'
    targetCompatibility = '1.8'
    configurations.all {
        exclude group: 'asm'
    }
}
tasks.withType(JavaCompile) {
    options.encoding = 'UTF-8' 
}

Answer 1

在 gradle 中，您应该为 JavaTask 设置编码。 然后，Xtend插件应该会选择这个。还要确保文件实际上具有正确的编码

tasks.withType(JavaCompile) {
    options.encoding = 'UTF-8' 
}

(或 ISO-8859-1 或 ...(