分级配置对两组配置文件和依赖项不起作用

Question

我正在构建一个Java项目来测试log4j和logback的性能。这两个实用程序的测试代码通过SLF4J是相同的：

package com.boco.logb;

import java.util.concurrent.TimeUnit;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LoggerOneThread {
    public static final long TOTAL_TIMES = 4000 * 1000;
    private static final Logger logger = LoggerFactory
            .getLogger(LoggerOneThread.class);

    public static void main(String[] args) {
        long start = System.nanoTime();
        for (int i = 1; i < TOTAL_TIMES; i++) {
            logger.debug("This is a test message. This is another test message.");
        }
        long estimatedTime = TimeUnit.NANOSECONDS.toSeconds(System.nanoTime()
                - start);
        System.out.println("Write " + TOTAL_TIMES + " logs takes time "
                + estimatedTime + " s.");
    }
}

当我将log4j.properties和相应的jar文件('log4j:log4j:1.2.17'和'org.slf4j:slf4j-log4j12:1.7.7')添加到类路径中时，这个程序将生成log4j日志。log4j.properties文件：

log4j.rootLogger = DEBUG, FILE

log4j.appender.FILE=org.apache.log4j.RollingFileAppender
log4j.appender.FILE.File=log4j.log
log4j.appender.FILE.Append=true
log4j.appender.FILE.MaxFileSize=50MB
log4j.appender.FILE.MaxBackupIndex=10
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%d{MM-dd HH:mm:ss.SSS} [%t] %p %c - %m%n

而如果将logback.xml和相应的jar('ch.qos.logback:logback-classic:1.1.2','ch.qos.logback:logback-core:1.1.2')添加到类路径中，则会生成日志。logback.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

  <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>logback.log</file>

    <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
      <fileNamePattern>logback.log.%i</fileNamePattern>
      <minIndex>1</minIndex>
      <maxIndex>11</maxIndex>
    </rollingPolicy>

    <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
      <maxFileSize>50MB</maxFileSize>
    </triggeringPolicy>

    <encoder>
      <pattern>%date{MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
    </encoder>
  </appender>

  <root level="DEBUG">
    <appender-ref ref="FILE" />
  </root>

</configuration>

我试图用Gradle构建这两个配置，因此我可以分别用：

gradle run log4j
gradle run logback

我的build.gradle文件是：

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'application'

sourceSets {
    log4j {
        java {
            srcDir 'src'
        }
        resources {
            srcDir 'res/log4j'
        }
        output.dir 'build/classes/log4j'
    }

    logback {
        java {
            srcDir 'src'
        }
        resources {
            srcDir 'res/logback'
        }
        output.dir 'build/classes/logback'
    }
}

mainClassName = "com.boco.logb.LoggerOneThread"

sourceCompatibility = 1.6
version = '1.0'
repositories {
    mavenCentral()
}

dependencies {
    log4jCompile 'log4j:log4j:1.2.17', 'org.slf4j:slf4j-log4j12:1.7.7'
    log4jRuntime 'log4j:log4j:1.2.17', 'org.slf4j:slf4j-log4j12:1.7.7'
    logbackCompile 'ch.qos.logback:logback-classic:1.1.2', 'ch.qos.logback:logback-core:1.1.2'
    logbackRuntime 'ch.qos.logback:logback-classic:1.1.2', 'ch.qos.logback:logback-core:1.1.2'
}

但是当我运行gradle classes时，没有在build/classes/log4j或build/classes/logback中创建类文件。如何配置使我可以分别运行log4j和logback？多谢了。

Answer 1

classess任务仅为默认的“main”源集构建源，该源集由Java插件添加。但是，当您添加新的源集时，Java插件会为每个已定义的源集添加一个 classs 任务。尝试：

$ gradle log4jClasses

你可以在Gradle文档中找到更多关于如何工作的信息。