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java - gradle build，失败任务'：compileJava'执行失败

问题描述

我在 Java 桌面应用程序中使用 gradle。

IDE 是 NetBeans，我想从我的 Java 类中生成一些自动化的 JSON。

我实现了 3 个类（只是 POJO）并尝试通过 gradle 导入 'com.github.reinert'，名称：'jjschema'，版本：'1.11'。

jjschema 将打印 java 对象的 JSON 等价物。

我的 gradle 版本是 4.4 & Java C:\Program Files\Java\jdk1.8.0_171 （两者都通过检查路径和发出 cmd 命令 gradle -version 来确认）

C:\X\Documents\NetBeansProjects\xMessage>gradle -version

梯度 4.4

构建时间：2017-12-06 09:05:06 UTC 修订：cf7821a6f79f8e2a598df21780e3ff7ce8db2b82

Groovy：2.4.12 Ant：2017 年 2 月 2 日编译的 Apache Ant(TM) 版本 1.9.9 JVM：1.8.0_171 (Oracle Corporation 25.171-b11) 操作系统：Windows 10 10.0 amd64

但是 gradle 没有解析类，也没有下载依赖项。

这是我的gradle文件：

  apply plugin: 'java'

    sourceCompatibility = '1.8'
    [compileJava, compileTestJava]*.options*.encoding = 'UTF-8'

    // NetBeans will automatically add "run" and "debug" tasks relying on the
    // "mainClass" property. You may however define the property prior executing
    // tasks by passing a "-PmainClass=<QUALIFIED_CLASS_NAME>" argument.
    //
    // Note however, that you may define your own "run" and "debug" task if you
    // prefer. In this case NetBeans will not add these tasks but you may rely on
    // your own implementation.
    if (!hasProperty('mainClass')) {
        ext.mainClass = ''
    }

    repositories {
        mavenCentral()
        // You may define additional repositories, or even remove "mavenCentral()".
        // Read more about repositories here:
        //   http://www.gradle.org/docs/current/userguide/dependency_management.html#sec:repositories
    }

    dependencies {
        // TODO: Add dependencies here ...
        // You can read more about how to add dependency here:
        //   http://www.gradle.org/docs/current/userguide/dependency_management.html#sec:how_to_declare_your_dependencies

//I also tried compile group: 'com.github.reinert', name: 'jjschema', version: '1.11'

       implementation group: 'com.github.reinert', name: 'jjschema', version: '1.11'
    }

这是我的 POJO，按 MobileDevice 顺序排列：

package x_mqtt_message;

import java.util.ArrayList;
import java.util.List;

public class MobileDevice {
    //most likely a phone number tied to the device if available or other id
    private String softwareId; 
    //device's hardwareId, is import if the user changes the phone or swaps SIM cards, we can still identify the hardware for tracking/diagnostics/debugging 
    private String hardwareId; 
    //services running on the device 
    private List<xService> services = new ArrayList<xService>();

    public String getSoftwareId() {
        return softwareId;
    }

    public void setSoftwareId(String softwareId) {
        this.softwareId = softwareId;
    }

    public String getHardwareId() {
        return hardwareId;
    }

    public void setHardwareId(String hardwareId) {
        this.hardwareId = hardwareId;
    }

    public List<xService> getServices() {
        return services;
    }

    public void setServices(List<xService> services) {
        this.services = services;
    }

xSensor 类：

package x_mqtt_message;

import com.github.reinert.jjschema.Attributes;


@Attributes(title="xSensor", description="An external sensor such as ECG,temp,Accelerometer,Pulse-oximete,Barometric Pressure,etc...")
public class xSensor {
    //unique id of the sensor 
    @Attributes(required=true, description="unique id of the sensor")
    private String id;  
    //type such as ECG,body_temperature,accelerometer,pulse-oximeter,barometric_pressure
    @Attributes(required=true, description="type such as ECG,body_temperature,accelerometer,pulse-oximeter,barometric_pressure")
    private String type;
    @Attributes(minItems=0,uniqueItems=false)
    private Object [] data; 

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public Object[] getData() {
        return data;
    }

    public void setData(Object[] data) {
        this.data = data;
    }

}

xService 类：

package x_mqtt_message;

import com.github.reinert.jjschema.Attributes;
import java.util.HashSet;

@Attributes(title="xService", description="A background process that send & receives data via several protocol")
public class xService {

    //service examples: mqtt_service, gps_service, compass_service, bluetooth_service, etc...
    @Attributes(required=true, description="mqtt_service, gps_service, compass_service, bluetooth_service, etc...")
    private String serviceName; 
    //is the service 100% up & running yes=true no=false 
    @Attributes(required=true, description="is the service 100% up & running yes=true no=false")
    private Boolean serviceStatus= false; 

    @Attributes(minItems=0,uniqueItems=true)
    private HashSet<xSensor> listOfSensors = new  HashSet<xSensor>(); 

    public String getServiceName() {
        return serviceName;
    }

    public void setServiceName(String serviceName) {
        this.serviceName = serviceName;
    }


}

主要入口：

package x_mqtt_message;


public class x_mqtt_message {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // These packages are NOT being found!!!!

JsonSchemaFactory schemaFactory = new JsonSchemaV4Factory();
schemaFactory.setAutoPutDollarSchema(true);
JsonNode productSchema = schemaFactory.createSchema(MobileDevice.class);
System.out.println(productSchema);
    }

}

通过 IDE 构建时，我得到：

执行：gradle clean build 参数：[-c, C:\x\Documents\NetBeansProjects\NgfrMessage\settings.gradle]

:clean C:\x\Documents\NetBeansProjects\NgfrMessage\src\main\java\ngfr_mqtt_message\Ngfr_mqtt_message.java:17: 错误：找不到符号 JsonSchemaFactory schemaFactory = new JsonSchemaV4Factory(); ^ 符号：类 JsonSchemaFactory 位置：类 Ngfr_mqtt_message C:\x\Documents\NetBeansProjects\NgfrMessage\src\main\java\ngfr_mqtt_message\Ngfr_mqtt_message.java:17：错误：找不到符号 JsonSchemaFactory schemaFactory = new JsonSchemaV4Factory(); ^ 符号：类 JsonSchemaV4Factory 位置：类 Ngfr_mqtt_message C:\x\Documents\NetBeansProjects\NgfrMessage\src\main\java\ngfr_mqtt_message\Ngfr_mqtt_message.java:19：错误：找不到符号 JsonNode productSchema = schemaFactory.createSchema(MobileDevice.class) ; ^ 符号：类 JsonNode 位置：类 Ngfr_mqtt_message 3 错误：

FAILURE：构建失败并出现异常。

通过 cmd > gradle build --debug 发出命令时相关片段：

17：33：42.834 [DEBUG] [org.gradle.internal.progress.DefaultBuildOperationExecutor] 完成构建操作'Task：compileJava' 17：33：42.834 [null] [org.gradle.internal.progress.DefaultBuildOperationExecutor] 17:33： 42.834 [DEBUG] [org.gradle.internal.progress.DefaultBuildOperationExecutor] 构建操作'Task：compileJava' 完成 17:33:42.835 [INFO] [org.gradle.execution.taskgraph.DefaultTaskPlanExecutor]：compileJava（线程 [Task worker for ':',5,main]) 完成。耗时 0.267 秒。17:33:42.835 [DEBUG] [org.gradle.internal.work.DefaultWorkerLeaseService] 工人租约 root.1.2 已完成（1 个工人正在使用）17:33:42.835 [DEBUG] [org.gradle.internal.resources .AbstractTrackedResourceLock] ':' 的任务工作者：在 root.1.2 17:33:42.835 [DEBUG] [org.gradle.internal.resources. internal.buildevents.BuildExceptionReporter] 17:33:42.844 [错误] [org.gradle.internal.buildevents.BuildExceptionReporter] 失败：构建失败并出现异常。17:33:42.845 [错误] [org.gradle.internal.buildevents.BuildExceptionReporter] 17:33:42.845 [错误] [org.gradle.internal.buildevents.BuildExceptionReporter] * 出了什么问题：17:33:42.845 [错误] [org.gradle.internal.buildevents.BuildExceptionReporter] 任务“：compileJava”执行失败。17:33:42.845 [错误] [org.gradle.internal.buildevents.BuildExceptionReporter] > 编译失败；有关详细信息，请参阅编译器错误输出。17：33：42.845 [错误] [org.gradle.internal.buildevents.BuildExceptionReporter] 17：33：42.845 [错误] [org.gradle.internal.buildevents.BuildExceptionReporter] *尝试：17：33：42.845 [错误] [ org.gradle.internal.buildevents。BuildExceptionReporter] 使用 --stacktrace 选项运行以获取堆栈跟踪。运行 --scan 以获得完整的见解。17:33:42.845 [错误] [org.gradle.internal.buildevents.BuildExceptionReporter] 17:33:42.845 [错误] [org.gradle.internal.buildevents.BuildExceptionReporter] * 获得更多帮助https://help.gradle.org 17:33:42.845 [错误] [org.gradle.internal.buildevents.BuildResultLogger] 17:33:42.845 [错误] [org.gradle.internal.buildevents.BuildResultLogger] 内置失败4s

当我在我的主类中注释掉代码时，项目成功构建，因此 gradle 或 java 设置没有问题，我只是无法通过项目中的 gradle 获取 gradle jjschema 包/依赖项来解析/下载？

谢谢

标签： javagradlebuild.gradle

解决方案

但是你不导入JsonSchemaFactory你的x_mqtt_message. 因此编译器找不到那些类。

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