log4c helloworld

log4c.c

#include <stdio.h>
#include "log4c.h"

int main(int argc, char** argv){
    int rc = 0;
    char *test = "test strings";
    log4c_category_t* mycat = NULL;

    if (log4c_init()){
        printf("log4c_init() failed");
        rc = 1; 
    }else{
        mycat = log4c_category_get("log4c.examples.helloworld");
        log4c_category_log(mycat, LOG4C_PRIORITY_ERROR, "hellworld");
        log4c_category_log(mycat, LOG4C_PRIORITY_ERROR, "%d", rc);
        log4c_category_log(mycat, LOG4C_PRIORITY_ERROR, "%s", test);
        /* Explicitly call the log4c cleanup routine */ 
        if ( log4c_fini()){ 
            printf("log4c_fini() failed");
        }
    }
    return 0;
}

　　

建立配置文件：log4crc

<?xml version="1.0" encoding="ISO-8859-1"?>                                                                                                                                      
<!DOCTYPE log4c SYSTEM "">
<log4c version="1.2.1">  

<config>                 
<bufsize>0</bufsize>     
<debug level="2"/>       
<nocleanup>0</nocleanup> 
<reread>1</reread>       
</config>                

<category name="root" priority="notice"/>

<appender name="stdout" type="stream" layout="basic"/>

<layout name="basic" type="basic"/>

<category name="log4c.examples.helloworld" priority="debug" appender="stdout"/>

</log4c>

appender 为指定输出位置 

例如：appender="./log4c.c"

编译：

gcc -g -Wall -O0 log4c.c -o log4c -llog4c

指定路径编译：

gcc -g -Wall -O0 log4c.c -o log4c -L/usr/local/log4c/lib/ -I/usr/local/log4c/include /usr/local/log4c/lib/liblog4c.so

如果用--prefix=/usr/local/log4c 指定了路径 则需要在.profile中添加

LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/log4c/lib 

export LD_LIBRARY_PATH　

输出：

[stdout] ERROR    log4c.examples.helloworld - hellworld
[stdout] ERROR    log4c.examples.helloworld - 0
[stdout] ERROR    log4c.examples.helloworld - test strings

原文地址：http://hi.baidu.com/lin_yingx/blog/item/8c4af2f96a1939999f514651.html

log4c下载地址：http://log4c.sourceforge.net/

下载地址：http://prdownloads.sourceforge.net/log4c/log4c-1.2.1.tar.gz

完