java - 使用 Apache Avro 生成的文件构建错误

Question

我使用 Gradle 使用 Apache Avro 构建一个简单的应用程序。以下是相关文件:

文件build.gradle

plugins {
    id "com.commercehub.gradle.plugin.avro" version "0.9.0"
}

apply plugin: 'application'

group 'ahmed'
version '1.0-SNAPSHOT'
sourceCompatibility = 1.8

dependencies {
    compile "org.apache.avro:avro:1.8.1"
    testCompile group: 'junit', name: 'junit', version: '4.11'
}

repositories {
    jcenter()
    mavenCentral()
}

avro {
    createSetters = false
    fieldVisibility = "PRIVATE"
}

mainClassName = 'App'

文件src/main/avro/com/ahmed/pb/Employee.avsc

{"namespace": "com.ahmed.pb",
  "type": "record", "name": "Employee",
    "fields": [
        {"name": "firstName", "type": "string"},
        {"name": "lastName", "type": "string"},
        {"name": "age",  "type": "int"},
        {"name": "phoneNumber",  "type": "string"}
    ]
}

文件:src/main/java/App.java

// import avro.com.ahmed.pm.*;

public class App {
    public String getGreeting() {
        return "Hello world.";
    }

    public static void main(String[] args) {
        System.out.println(new App().getGreeting());


        Employee bob = Employee.newBuilder().setAge(35)
                .setFirstName("Bob")
                .setLastName("Jones")
                .setPhoneNumber("555-555-1212")
                .build();

        assertEquals("Bob", bob.getFirstName());
    }
}

构建错误消息:

$ ./gradlew  run
Starting a Gradle Daemon (subsequent builds will be faster)
:generateAvroProtocol NO-SOURCE
:generateAvroJava
:compileJava
/home/ahmed/temp/avrotut/src/main/java/App.java:5: error: package avro.com.ahmed.pm does not exist
import avro.com.ahmed.pm.*;
^
/home/ahmed/temp/avrotut/src/main/java/App.java:17: error: cannot find symbol
        Employee bob = Employee.newBuilder().setAge(35)
        ^
  symbol:   class Employee
  location: class App
/home/ahmed/temp/avrotut/src/main/java/App.java:17: error: cannot find symbol
        Employee bob = Employee.newBuilder().setAge(35)
                       ^
  symbol:   variable Employee
  location: class App
Note: /home/ahmed/temp/avrotut/build/generated-main-avro-java/com/ahmed/pb/Employee.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
3 errors
:compileJava FAILED

我很难包含 Java 生成的类。我需要在 build.gradle 文件中添加一些依赖项吗？ App.java 中的导入行也不起作用。

Answer 1

问题是完整包名称的拼写错误。结束这个问题已解决。