Boost.log

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本文不定期修正完善，为保证内容正确，建议移步原文处阅读。 <--------总有一天我要自己做一个模板干掉这只土豆

本文链接：http://www.cnblogs.com/wlsandwho/p/4666418.html

耻辱墙：http://www.cnblogs.com/wlsandwho/p/4206472.html

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也不知道写的对不对，目前能用就好。

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自动生成文件名、设置过滤等级、设置日志格式、输出到完备日志和重要日志

（部分功能没用到就不删除了，也不碍事。）

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日志格式：

00000001 2015-07-22_09:14:35.771886 <fatal> 王林森原创未经许可请勿转载侵权必究

（行号　）　（　　　　　时间戳　　　　　）　（等级）　　（　　　　　　内容　　　　　　　　）

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头文件

 1 #include <iostream>
 2 #include <boost/locale/generator.hpp>
 3 #include <boost/date_time/posix_time/posix_time_types.hpp>
 4 #include <boost/log/common.hpp>
 5 #include <boost/log/expressions.hpp>
 6 #include <boost/log/utility/setup/file.hpp>
 7 #include <boost/log/utility/setup/console.hpp>
 8 #include <boost/log/utility/setup/common_attributes.hpp>
 9 #include <boost/log/sources/logger.hpp>
10 #include <boost/log/support/date_time.hpp>
11 #include <cstddef>
12 #include <string>
13 #include <fstream>
14 #include <iomanip>
15 #include <boost/smart_ptr/shared_ptr.hpp>
16 #include <boost/smart_ptr/make_shared_object.hpp>
17 #include <boost/date_time/posix_time/posix_time.hpp>
18 #include <boost/log/core.hpp>
19 #include <boost/log/attributes.hpp>
20 #include <boost/log/sources/basic_logger.hpp>
21 #include <boost/log/sources/severity_logger.hpp>
22 #include <boost/log/sources/record_ostream.hpp>
23 #include <boost/log/sinks/sync_frontend.hpp>
24 #include <boost/log/sinks/text_ostream_backend.hpp>
25 #include <boost/log/attributes/scoped_attribute.hpp>
26 #include <boost/log/expressions/formatters/date_time.hpp>
27 #include <boost/log/sinks/text_file_backend.hpp>
28 #include <boost/log/sources/global_logger_storage.hpp>
29 
30 
31 namespace logging = boost::log;
32 namespace sinks = boost::log::sinks;
33 namespace attrs = boost::log::attributes;
34 namespace src = boost::log::sources;
35 namespace expr = boost::log::expressions;
36 namespace keywords = boost::log::keywords;
37 
38 
39 enum severity_level
40 {
41     normal,
42     message,
43     alarm,
44     error,
45     fatal
46 };
47 
48 template< typename CharT, typename TraitsT >
49 inline std::basic_ostream< CharT, TraitsT >& operator<< (std::basic_ostream< CharT, TraitsT >& strm, severity_level lvl)
50 {
51     static const char* const str[] =
52     {
53         "normal",
54         "message",
55         "alarm",
56         "error",
57         "fatal"
58     };
59     if (static_cast< std::size_t >(lvl) < (sizeof(str) / sizeof(*str)))
60         strm << str[lvl];
61     else
62         strm << static_cast< int >(lvl);
63     return strm;
64 }
65 
66 BOOST_LOG_ATTRIBUTE_KEYWORD(severity, "Severity", severity_level)
67 BOOST_LOG_ATTRIBUTE_KEYWORD(timestamp, "TimeStamp", boost::posix_time::ptime)
68 BOOST_LOG_ATTRIBUTE_KEYWORD(line_id, "LineID", unsigned int)
69 BOOST_LOG_ATTRIBUTE_KEYWORD(tag_attr, "Tag", std::string)
70 BOOST_LOG_ATTRIBUTE_KEYWORD(timeline, "Timeline", attrs::timer::value_type)
71 
72 
73 void init_logging();

实现文件

 1 void CHTCollectorDlg::init_logging()
 2 {
 3     CString strFileName=m_strLogLocation+TEXT("\WLS_%Y-%m-%d_FULL.log");
 4 
 5     std::locale::global(std::locale("chs"));
 6 
 7     typedef sinks::synchronous_sink< sinks::text_file_backend > text_sink;
 8 
 9     boost::shared_ptr< text_sink > sink = boost::make_shared< text_sink >(  keywords::open_mode=std::ios::app,
10                                                                             keywords::file_name =strFileName,
11                                                                             keywords::rotation_size = 10 *1 * 1024 * 1024,
12                                                                             keywords::time_based_rotation = sinks::file::rotation_at_time_point(0, 0, 0)
13                                                                             );
14     sink->set_formatter(expr::stream
15                             << std::dec << std::setw(8) << std::setfill('0') << line_id << std::dec << std::setfill(' ')
16                             <<"	"<<expr::format_date_time< boost::posix_time::ptime >("TimeStamp", "%Y-%m-%d_%H:%M:%S.%f")
17                             << "	<"<< severity.or_default(normal) 
18                             << ">		"<<expr::if_(expr::has_attr(tag_attr))
19                                                 [
20                                                     expr::stream << "[" << tag_attr << "]"
21                                                 ]
22                             << expr::if_(expr::has_attr(timeline))
23                                         [
24                                             expr::stream << "[>"<< timeline << "<]"
25                                         ]
26                             << expr::message);
27 
28     sink->locked_backend()->auto_flush(true);
29 
30     logging::core::get()->add_sink(sink);
31 
32     //////////////////////////////////////////////////////////////////////////
33     strFileName=m_strLogLocation+TEXT("WLS_%Y-%m-%d_IMPORTANT.log");
34     sink = boost::make_shared< text_sink >(    keywords::open_mode=std::ios::app,
35         keywords::file_name =strFileName,
36         keywords::rotation_size = 10 *1 * 1024 * 1024,
37         keywords::time_based_rotation = sinks::file::rotation_at_time_point(0, 0, 0)
38         );
39     sink->set_formatter(expr::stream
40         << std::dec << std::setw(8) << std::setfill('0') << line_id << std::dec << std::setfill(' ')
41         <<"	"<<expr::format_date_time< boost::posix_time::ptime >("TimeStamp", "%Y-%m-%d_%H:%M:%S.%f")
42         << "	<"<< severity.or_default(normal) 
43         << ">		"<<expr::if_(expr::has_attr(tag_attr))
44         　　　　　　　　　　[
45             　　　　　　　　　　expr::stream << "[" << tag_attr << "]"
46         　　　　　　　　　　]
47     　　<< expr::if_(expr::has_attr(timeline))
48         　　　　[
49             　　　　expr::stream << "[>"<< timeline << "<]"
50         　　　　]
51     　　<< expr::message);
52 
53     sink->locked_backend()->auto_flush(true);
54     sink->set_filter(severity>=alarm);
55     logging::core::get()->add_sink(sink);
56 
57     logging::add_common_attributes();
58 }

用法

1 AddRecord(severity_level sl,CString str)
2 {
3     src::wseverity_logger< severity_level > slg;
4     BOOST_LOG_SEV(slg, sl) <<str.GetBuffer(str.GetLength());
5 }