SpringBoot（四）spring-boot-web-log4j

spring boot 中打印日志的配置方式

首先看maven的配置文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.julongtech</groupId>
  <artifactId>SpringBootWebTest</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>SpringBootWebTest Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.2.RELEASE</version>
  </parent>

  <dependencies>

    <!-- This is a web application -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
      <!-- 过滤掉 -->
      <exclusions>
        <exclusion>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-logging</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-log4j2</artifactId>
    </dependency>
    <!-- Tomcat embedded container -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-tomcat</artifactId>
      <scope>provided</scope>
    </dependency>

    <!-- JSTL for JSP -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
    </dependency>

    <!-- Need this to compile JSP -->
    <dependency>
      <groupId>org.apache.tomcat.embed</groupId>
      <artifactId>tomcat-embed-jasper</artifactId>
      <scope>provided</scope>
    </dependency>

    <!-- Need this to compile JSP, tomcat-embed-jasper version is not working, 
      no idea why -->
    <dependency>
      <groupId>org.eclipse.jdt.core.compiler</groupId>
      <artifactId>ecj</artifactId>
      <version>4.6.1</version>
      <scope>provided</scope>
    </dependency>

    <!-- Optional, test for static content, bootstrap CSS -->
    <dependency>
      <groupId>org.webjars</groupId>
      <artifactId>bootstrap</artifactId>
      <version>3.3.7</version>
    </dependency>

  </dependencies>
  <build>
    <finalName>SpringBootWebTest</finalName>
    <plugins>
      <!-- Package as an executable jar/war -->
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </build>
</project>

在项目中建立 ​​application.properties 文件
​​

​​在文件中添加log4j配置​​

#设置访问的路径
spring.mvc.view.prefix: /WEB-INF/pages/
spring.mvc.view.suffix: .jsp
# Context path of the application.
#设置访问的目录 此处可以是项目名称也可以自己定义 http://localhost:8080/SpringBoot/
server.context-path: /SpringBoot
#日志配置
#日志级别
logging.level.root=DEBUG
logging.level.org.springframework.web=DEBUG
logging.level.com.julongtech=DEBUG
#logger存放文件 Log file name. For instance `myapp.log`
logging.file=C://LOG4J/log.log
# Logging pattern for the console
#logging.pattern.console= "%d{yyyy-MM-dd HH:mm:ss} - %msg%n"
# Logging pattern for file
#logging.pattern.file= "%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n"

​​创建的controller​​

package com.julongtech.action;

import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class HelloController {

  private Logger logger = LoggerFactory.getLogger(HelloController.class);
  @RequestMapping("/")
  public String welcome(Map<String, Object> model) {
    logger.debug("11111111111111111111111");
    model.put("message", "123");
    return "index";
  }
}

​​创建启动类SpringBootWebApplication​​

package com.julongtech.action;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;

@SpringBootApplication
public class SpringBootWebApplication extends SpringBootServletInitializer {


    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(SpringBootWebApplication.class);
    }

    public static void main(String[] args) throws Exception {
        SpringApplication.run(SpringBootWebApplication.class, args);
    }
}

​​创建文件夹src\main\webapp\WEB-INF\pages 创建jsp界面 ，完成后运行项目 会看到日志级别调整了
​​官方给的参数如下

# LOGGING
logging.config= # Location of the logging configuration file. For instance `classpath:logback.xml` for Logback
logging.exception-conversion-word=%wEx # Conversion word used when logging exceptions.
logging.file= # Log file name. For instance `myapp.log`
logging.level.*= # Log levels severity mapping. For instance `logging.level.org.springframework=DEBUG`
logging.path= # Location of the log file. For instance `/var/log`
logging.pattern.console= # Appender pattern for output to the console. Only supported with the default logback setup.
logging.pattern.file= # Appender pattern for output to the file. Only supported with the default logback setup.
logging.pattern.level= # Appender pattern for log level (default %5p). Only supported with the default logback setup.
logging.register-shutdown-hook=false # Register a shutdown hook for the logging system when it is initialized.