项目开发日记详解一

项目开发中日志详解一

      项目开发中，日志也是很重要的一块，它起到了跟踪系统运行，查找异常等作用。

1      日志所需要的jar包：commons-logging-1.1.1.jar，

                                      log4j-1.2.16.jar，

                                      slf4j-api-1.6.1.jar，

                                      slf4j-log4j12-1.6.1.jar

2    添加log4j配置文件

# Licensed to the Apache Software Foundation (ASF) under one or more

# contributor license agreements.  See the NOTICE file distributed with

# this work for additional information regarding copyright ownership.

# The ASF licenses this file to You under the Apache License, Version 2.0

# (the "License"); you may not use this file except in compliance with

# the License.  You may obtain a copy of the License at

# 

#    http://www.apache.org/licenses/LICENSE-2.0

# 

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

log4j.rootLogger=INFO,stdout

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.SSS} %-5p %C{1} %m%n

log4j.appender.file=org.apache.log4j.FileAppender

log4j.appender.file.File=logs/scenter.log

log4j.appender.file.Encoding=UTF-8

log4j.appender.file.layout=org.apache.log4j.PatternLayout

log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS} %-5p %C{1} %m%n

log4j.logger.org.apache.zookeeper=ERROR