一，下载：http：//log4cpp.sourceforge.net
二，安装：打开终端，以此执行下列命令：
./configure
make
make check
make install
三，在eclipse中测试：
在eclipse中建立一个C++工程，输入测试代码：
#include <iostream>
using namespace std;
#include "log4cpp/Category.hh"
#include "log4cpp/Appender.hh"
#include "log4cpp/FileAppender.hh"
#include "log4cpp/OstreamAppender.hh"
#include "log4cpp/Layout.hh"
#include "log4cpp/BasicLayout.hh"
#include "log4cpp/Priority.hh"
void simpleDemo();
int main() {
cout << "This is log4cpp example" << endl;
simpleDemo();
return 0;
}
void simpleDemo() {
log4cpp::Appender *appender1 = new log4cpp::OstreamAppender("console",
&std::cout);
appender1->setLayout(new log4cpp::BasicLayout());
log4cpp::Appender *appender2 = new log4cpp::FileAppender("default",
"program.log");
appender2->setLayout(new log4cpp::BasicLayout());
log4cpp::Category& root = log4cpp::Category::getRoot();
root.setPriority(log4cpp::Priority::WARN);
root.addAppender(appender1);
log4cpp::Category& sub1 = log4cpp::Category::getInstance(
std::string("sub1"));
sub1.addAppender(appender2);
// use of functions for logging messages
root.error("root error");
root.info("root info");
sub1.error("sub1 error");
sub1.warn("sub1 warn");
// printf-style for logging variables
root.warn("%d + %d == %s ?", 1, 1, "two");
// use of streams for logging messages
root << log4cpp::Priority::ERROR << "Streamed root error";
root << log4cpp::Priority::INFO << "Streamed root info";
sub1 << log4cpp::Priority::ERROR << "Streamed sub1 error";
sub1 << log4cpp::Priority::WARN << "Streamed sub1 warn";
// or this way:
root.errorStream() << "Another streamed error";
}
这个时候应该会出错，显示没有找到库信息，解决方法如下：
首先，打开工程属性->"c/c++Build"->"settings"->"tool settings"。
1，"GCC C++ Complier"->"includes"->"/usr/local/include"。
2，“GCC C++ Linker”->"Libraries"，增加两项：“log4cpp”；“pthread”。
再次运行，如果提示共享库找不到问题，解决办法如下：
1，修改/etc/ld.so.conf，在文件末尾加入一行：“/usr/local/lib”。
2，在终端中输入命令：ldconfig
再次运行，我们会发现已经可以正常使用log4cpp了！
转载于:https://www.cnblogs.com/sunylat/archive/2013/05/13/6119125.html