我正在尝试通过 maven 编译使用 lombok 的项目,但出现以下问题:
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[INFO] Building akka-calculator-lib 1.0-SNAPSHOT
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[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ akka-calculator-lib ---
[INFO] Deleting C:\dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ akka-calculator-lib ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ akka-calculator-lib ---
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent!
[INFO] Compiling 11 source files to C:\dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\target\classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\operation\multiply\MultiplyResult.java:[13,22] error: variable firstNumber not initialized in the default constructor
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\operation\multiply\MultiplyResult.java:[14,22] error: variable secondNumber not initialized in the default constructor
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\operation\multiply\MultiplyResult.java:[15,22] error: variable result not initialized in the default constructor
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[35,52] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[35,87] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[36,54] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[37,74] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[38,74] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[38,101] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[43,50] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[43,85] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[44,64] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[45,84] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[46,84] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[46,111] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[51,50] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[51,85] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[52,64] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[53,84] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[54,84] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[54,111] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[59,50] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[59,85] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[60,60] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[61,80] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[62,89] error: cannot find symbol
[ERROR] \dev\projects\Akka\akka-testing\akka-calculator\akka-calculator-lib\src\main\java\com\mangusbrother\akka\calculator\lib\CalculatorActor.java:[62,127] error: cannot find symbol
[INFO] 27 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] akka-parent ........................................ SUCCESS [ 0.164 s]
[INFO] akka-testing ....................................... SUCCESS [ 0.011 s]
[INFO] akka-calculator .................................... SUCCESS [ 0.010 s]
[INFO] akka-calculator-lib ................................ FAILURE [ 2.758 s]
[INFO] akka-calculator-creation ........................... SKIPPED
[INFO] akka-calculator-lookup ............................. SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.120 s
[INFO] Finished at: 2016-02-14T19:01:21+01:00
[INFO] Final Memory: 14M/169M
[INFO] ------------------------------------------------------------------------
第一个错误类型是针对此类中的字段:
package com.mangusbrother.akka.calculator.lib.operation.multiply;
import com.mangusbrother.akka.calculator.lib.operation.MathematicalResult;
import lombok.Data;
/**
* Created by Mangusbrother on 14/02/2016.
*/
@Data
public class MultiplyResult implements MathematicalResult {
private static final long serialVersionUID = 738641818941986L;
private final int firstNumber;
private final int secondNumber;
private final int result;
}
第二个错误是当一个类试图从 lombok 类访问 getter 时
我的 maven pom.xml 中有以下内容:
<properties>
<lombok.version>1.16.6</lombok.version>
</properties>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
最佳答案
将 annotationProcessorPaths 添加到您的 maven-compiler-plugins 配置中:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
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