Question

所以我可以使用ant xjc在合约jar中从ONE xsd生成类。如何从这个jar 生成多个模式的类而不解压缩

 ant.xjc(package: packageName, destdir: project.ext.generatedSrcDir,    
 extension: 'true',
 schema: "jar:file:///$pathToContractJar!/MySchema.xsd")

Answer 1

configurations {
    jaxb
}
dependencies {
    jaxb 'com.sun.xml.bind:jaxb-xjc:2.2.6'
    jaxb 'com.sun.xml.bind:jaxb-impl:2.2.6'
    jaxb 'javax.xml.bind:jaxb-api:2.2.6'    
}
task xjc {
    def xsds = zipTree(pathToContractJar).matching { 
        include: '*.xsd' 
    }
    inputs.dir "src/main/resources/bindings"
    inputs.files xsds
    outputs.dir "$buildDir/xjc"
    doLast {
        System.setProperty('javax.xml.accessExternalSchema', 'all')
        mkdir "$buildDir/xjc/result"
        mkdir "$buildDir/xjc/xsd"

        copy {
            from xsds
            into "$buildDir/xjc/xsd"
        }
        ant.taskdef(name: 'xjc', classname: 'com.sun.tools.xjc.XJCTask', classpath: configurations.jaxb.asPath)
        ant.xjc(
            destdir: "$buildDir/xjc/result",
            package: packageName,
        ) {
            schema(dir: "$buildDir/xjc/xsd", includes: '*.xsd')
            binding(dir: "src/main/resources/bindings", includes: '*.xjb')
            arg(value: '-verbose')
        }
    }
}

Answer 2

我已经使用了很长时间，但是我发现使用Java 11 / Gradle 6不再有效。 Java 11没有JAXB API，因此需要将其添加为依赖项。同样，在Gradle中使用Ant调用XJC的机制也不想起作用，可能我只是没有找到标志的魔术组合！相反，可以调用JAR清单中列出的XJC主类，从而完全删除Ant。使用Gradle 6.3和Java 11时，这里的配置对我有用。

我还没有尝试过将这种方法与JAR +绑定文件一起使用，但是根据使用情况信息可以使用这些参数，因此应该可以使用！

更新：根据this question

，使用GlassFish实现可以避免Sun内部依赖项问题

sourceSets {

    generated {
        java.srcDir "$generated_dir"
    }
}

dependencies {

    compile sourceSets.generated.output

    // Generated code depends on the JAXB API, which is removed from base Java in JDK 11
    compile "org.glassfish.jaxb:jaxb-runtime:2.3.3"
    generatedCompile "org.glassfish.jaxb:jaxb-runtime:2.3.3"
}


// XJC tasks

// JAXB configuration holds classpath for running the JAXB XJC compiler
configurations {
    jaxb
}

dependencies {

    jaxb "org.glassfish.jaxb:jaxb-xjc:2.3.3"
}

// Cookie cutter function for defining multiple XJC tasks
// (not necessary if you only have a single task)!
def addXjcTask(taskName, schema, pkg, dest) {

    // If you haven't already, create the generated output dir before running XJC or it will fail
    file(dest).mkdirs()

    // The main XJC task, calls XJCFacade which is the entry point of the XJC JAR
    tasks.create(name: taskName, type: JavaExec) {

        classpath configurations.jaxb
        main 'com.sun.tools.xjc.XJCFacade'

        // To explore available args, download the XJC JAR and run java -jar jaxb-xjc.jar --help
        args schema, "-p", pkg, "-d", dest
    }

    // Add a dependency on the new task so it gets invoked
    compileGeneratedJava.dependsOn tasks.getByName(taskName)
}

// Add all the XJC tasks you need

addXjcTask("xjcSchema1",
        "path/to/schema1.xsd",
        'com.example.generated.schema1',
        "$generated_dir")

addXjcTask("xjcSchema2",
        "path/to/schema2.xsd",
        'com.example.generated.schema2',
        "$generated_dir")

在gradle中使用ant XJC从JAR编译多个XSD

2 个答案: