log4cxx安装使用
log4cxx现在是apache的一个项目,用来记录日志。看名字就知道,是给c++使用的。
环境(在以下2个环境中进行验证测试):
gcc (Ubuntu 4.8.4-2ubuntu1~14.04) 4.8.4
gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16)
log4cxx依赖于apache 的 apr 和 apr-util,所以安装顺序是: apr, apr-util, log4cxx。
1.软件包下载
apr: http://apr.apache.org/download.cgi
apr-util: http://apr.apache.org/download.cgi
log4cxx: http://logging.apache.org/log4cxx/download.html
2.安装apr
#tar xzvf apr-1.5.2.tar.bz2
#cd apr-1.5.2
#./configure --prefix=/usr/local/apr
#make
#make install
3.安装apr-util
#tar xzvf apr-util-1.5.4.tar.bz2
#cd apr-util-1.5.4
#./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr
#make
#make install
4.安装log4cxx
#tar xzf apache-log4cxx-0.10.0.tar.gz
#cd apache-log4cxx-0.10.0
log4cxx直接make会报类似error: ‘memmove’ was not declared in this scope的错误,参考前人的工作,修改以下源文件:
src/main/cpp/inputstreamreader.cpp 添加 #include <string.h>
src/main/cpp/socketoutputstream.cpp 添加 #include <string.h>
src/examples/cpp/console.cpp 添加 #include <string.h> #include <stdio.h>
#./configure --prefix=/usr/local/log4cxx --with-apr=/usr/local/apr --with-apr-util=/usr/local/apr-util
#make
#make install
5.把编译后的库加载到环境变量中(实际使用和发布使用log4cx库需要其他更多的工作)
export LD_LIBRARY_PATH=/usr/local/apr/lib/:/usr/local/apr-util/lib/:/usr/local/log4cxx/lib/
6.测试代码
test.cpp
#include <iostream> #include <log4cxx/logger.h> #include <log4cxx/propertyconfigurator.h> #include <log4cxx/helpers/exception.h> using namespace std; using namespace log4cxx; using namespace log4cxx::helpers; static const string CONF_LOG_FILE = "/home/fg/src/work/test/test.properties"; LoggerPtr logger(Logger::getRootLogger()); int main(void) { try { PropertyConfigurator::configure(CONF_LOG_FILE); LOG4CXX_INFO(logger, "Init() success."); cout << "success" << endl; } catch (Exception &) { cout << "log4cxx init error" << endl; } return 0; }