Fedora 6怎么使用log4cxx的版本为0.97

2023-04-12 01:42:00 fedora 版本 log4cxx

如何使用log4cxx的版本为0.97

log4cxx的版本为0.97是一个开源的C++日志记录库，它可以帮助我们轻松的记录日志信息。log4cxx使用了一个配置文件来读取日志记录的相关配置，这个配置文件一般是log4j.properties或者log4j.xml。

要想在Fedora 6中使用log4cxx的版本为0.97，我们需要做一些准备工作：

首先，确保你的系统中安装了gcc、g++、make等编译工具。如果没有安装，可以使用yum命令来安装：

sudo yum install gcc gcc-c++ make

然后，下载log4cxx的源码并解压缩：

wget http://www.apache.org/dist/logging/log4cxx/0.10.0/apache-log4cxx-0.10.0.tar.gz

tar -xzvf apache-log4cxx-0.10.0.tar.gz

接下来，进入log4cxx的源码目录并执行configure脚本来生成Makefile文件：

cd apache-log4cxx-0.10.0

./configure

如果一切顺利，会看到如下输出：

checking build system type... x86_64-unknown-linux-gnu

checking host system type... x86_64-unknown-linux-gnu

checking target system type... x86_64-unknown-linux-gnu

checking for a BSD-compatible install... /usr/bin/install -c

checking whether build environment is sane... yes

checking for a thread-safe mkdir -p... /bin/mkdir -p

checking for gawk... gawk

checking whether make sets $(MAKE)... yes

checking for style of include used by make... GNU

checking for gcc... gcc

checking whether the C compiler works... yes

checking for C compiler default output file name... a.out

checking for suffix of executables...

checking whether we are cross compiling... no

checking for suffix of object files... o

checking whether we are using the GNU C compiler... yes

checking whether gcc accepts -g... yes

checking for gcc option to accept ISO C89... none needed

checking how to run the C preprocessor... gcc -E

checking for grep that handles long lines and -e... /bin/grep

checking for egrep... /bin/grep -E

checking for ANSI C header files... yes

checking for sys/types.h... yes

checking for sys/stat.h... yes

checking for stdlib.h... yes

checking for string.h... yes

checking for memory.h... yes

checking for strings.h... yes

checking for inttypes.h... yes

checking for stdint.h... yes

checking for unistd.h... yes

checking for string.h... (cached) yes

checking for memory.h... (cached) yes

checking sys/time.h usability... yes

checking sys/time.h presence... yes

checking for sys/time.h... yes

checking for unistd.h... (cached) yes

checking for an ANSI C-conforming const... yes

checking whether time.h and sys/time.h may both be included... yes

checking whether gcc needs -traditional... no

checking for g++... g++

checking whether we are using the GNU C++ compiler... yes

checking whether g++ accepts -g... yes

checking how to run the C++ preprocessor... g++ -E

checking for objdir... .libs

checking if gcc supports -fno-rtti -fno-exceptions... no

checking for gcc option to produce PIC... -fPIC -DPIC

checking if gcc PIC flag -fPIC -DPIC works... yes

checking if gcc static flag -static works... yes

checking if gcc supports -c -o file.o... yes

checking whether the gcc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes

checking whether -lc should be explicitly linked in... no

checking dynamic linker characteristics... GNU/Linux ld.so

checking how to hardcode library paths into programs... immediate

checking whether stripping libraries is possible... yes

checking if libtool supports shared libraries... yes

checking whether to build shared libraries... yes

checking whether to build static libraries... no

configure: creating libtool

appending configuration tag "CXX" to libtool

configure: creating ./config.status

config.status: creating Makefile

config.status: creating config.h

config.status: executing default-1 commands

编译并安装log4cxx：

make

sudo make install

安装完成后，可以在/usr/local/lib目录下看到liblog4cxx.so文件。

最后，我们来测试一下log4cxx是否能够正常工作。首先，编写一个测试程序：

#include

using namespace log4cxx;

int main()

{

// BasicConfigurator::configure();

PropertyConfigurator::configure("log4j.properties");

LoggerPtr logger(Logger::getLogger("test"));

LOG4CXX_INFO(logger, "This is a test!");

return 0;

}

然后，编写一个log4j.properties配置文件：

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}] [%p] %m%n

最后，使用g++编译并运行测试程序：

g++ test.cpp -o test -llog4cxx

./test

如果一切正常的话，会在控制台输出如下信息：

[2018-01-01 12:00:00] [INFO] This is a test!

说明log4cxx在Fedora 6中可以正常使用。

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