单元测试类、Log4j、Logback、SLF4j

SpringBoot 单元测试

依赖

		<!--核心 POM，包含自动配置支持、日志库和对 YAML 配置文件的支持-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

创建测试类

• @RunWith：使用一种运行方式运行测试类（SpringJUnit4ClassRunner让测试运行于Spring测试环境、SpringRunner继承自SpringJUnit4ClassRunner）
• @SpringBootTest：classes属性解决了测试类路径与源码路径不一致时，找不到@springbootconfig报错的问题

@RunWith(SpringRunner.class)
@SpringBootTest(classes = ArticleRepositoryTest.class)  
public class ArticleRepositoryTest {
    @Test
    public void getArticlesByAjax() throws Exception {
        List<Article> articles = articleRepository.getArticlesByUserId();
        articles.get(2);
    }
}

SSM 单元测试

依赖

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>4.1.3.RELEASE</version>
    </dependency>
      
    <!-- 集成junit -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
    </dependency>

测试类

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({"classpath:springMVC.xml", "classpath:applicationContext.xml"})
public class TestDao {
    @Resource
    RoleMapper roleMapper;

    @Test
    public void test1(){
        List<Auth> auths = roleMapper.listAuth();
        System.out.println("auths = " + auths);
    }
}

Logback+SLF4j

springboot默认日志实现：logback

依赖

                <!-- 包含logback、Slf4j-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
		</dependency>

配置

• 两种方式配置日志规则，这里都使用到了，在yml中配置logback-spring.xml位置

application.yml

logging:
  config: classpath:logback-spring.xml
  level:
    # 这里可以是包名也可以是类名
    # DEBUG<INFO<WARN<ERROR<FATAL
    com.hd.dao: info
    org:
      mybatis: info

logback-spring.xml

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

    <!--0. 日志格式和颜色渲染 -->
    <!-- 彩色日志依赖的渲染类 -->
    <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
    <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
    <conversionRule conversionWord="wEx" converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter" />
    <!-- 彩色日志格式 -->
    <property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>

    <!-- 配置控制台输出 -->
    <appender name="consoleLog" class="ch.qos.logback.core.ConsoleAppender">
        <!--此日志appender是为开发使用，只配置最底级别，控制台输出的日志级别是大于或等于此级别的日志信息-->
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>debug</level>
        </filter>
        <encoder>
            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
            <!-- 设置字符集 -->
            <charset>UTF-8</charset>
        </encoder>
    </appender>

    <!-- 配置文件输出(Info)-->
    <appender name="fileInfoLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
        </encoder>
        <!-- 滚动策略-->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!-- 文件位置 -->
            <fileNamePattern>e:/log/info-%d.log</fileNamePattern>
        </rollingPolicy>
    </appender>

    <!-- 配置文件输出（Error）-->
    <appender name="fileErrorLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <!--添加 范围 过滤-->
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>ERROR</level>
        </filter>
        <encoder>
            <pattern>%d -- %msg%n</pattern>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>e:/log/error-%d.log</fileNamePattern>
        </rollingPolicy>
    </appender>

    <root level="info">
        <appender-ref ref="consoleLog" />
        <appender-ref ref="fileInfoLog" />
        <appender-ref ref="fileErrorLog" />
    </root>
</configuration>

使用日志输出

public class LoggerTest {
    private final Logger logger = LoggerFactory.getLogger(LoggerTest.class);

    @Test
    public void test(){
        logger.debug("debug...");
        logger.info("info...");

    }
}

Log4j+SLF4j

依赖

    <!-- Log4j 日志实现-->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.16</version>
    </dependency>
    <!-- Slf4j 日志门面-->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.12</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.7.12</version>
    </dependency>

配置
log4j.properties

# Global logging configuration
log4j.rootLogger=ERROR, stdout
# MyBatis logging configuration...
log4j.logger.com.hd=TRACE
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{[yyyy-MM-dd HH:mm:ss]} %m %n

日志输出

public class LogTest {
    static final Logger logger = LoggerFactory.getLogger(LogTest.class);

    @Test
    public void test(){
        logger.error("error...");
    }
}

避坑

logback日志控制台无效
测试日志本地生成有效说明springbooot已经加载了logback-spring.xml，clean maven后rebuild后解决