转自----hequn8128
在阅读代码量比较多的项目时，类的继承树和函数调用图能够直观地向我们显示类之间或者函数之间的各种关系，方便我们了解程序的整体框架，很多时候可以起到事半功倍的作用。这里尝试了用doxygen+graphviz生成工程中的类继承树和函数调用图的方法，总体来说操作比较方便。网上还有其他一些方法，比如eclipse插件还有Rational Software Rrchitect，对于eclipse插件，功能比较有限，而Rational Software Rrchitect软件装的时候老有问题，以后再尝试下。
doxygen是一款用来生成项目文档的软件，类似于javadoc，但是比javadoc要强大，还可以对项目代码的结构进行分析。最初doxygen设计来分析c++代码，现在也支持如java, python, obj-c, php等语言。
graphviz是一款展示图和网络结构的软件，用来绘制DOT语言脚本描述的图形。
总的来说，就是用doxygen来生成结构，用graphviz来显示结构。
一、软件安装。（环境:win7 64bit）
首先，安装doxygen，可以在官网的download页面下载，下载doxygen-1.8.8-setup.exe，安装即可。软件集成了32位和64位安装包。然后，安装graphviz，官网下载地址，下载windows安装包。
二、配置doxygen。（graphviz安装好后不需要其他配置操作）
doxygen打开的页面如下图所示，有三个配置选项卡：wizard,expert,run。
1）wizard选项卡。
project)step1中先设置doxygen生成文档的工作空间，step2中设置要生成文档的工程名字，源代码的目录，是否递归处理源代码，还有生成文档存放的位置。
mode)中选择要处理的语言
output)略
Diagrams)勾选Use do tool from the GraphViz package，下面的复选框也全勾上。
2）Expert选项卡。
build)中主要勾选EXTRACE_ALL, EXTRACE_PRIVATE, EXTRACE_STATIC, EXTRACE_LOCAL_CALSSES, EXTRACE_LOCAL_METHODS
Doc)中勾选MUL_LOOK, 设置DOT_PATH即doc.exe的位置，位于graphviz安装路径下的bin目录下。（这里比较关键，我一开始没设置路径，识别不出graphviz的地址，继承关系解析出来了，但是图没画出来）。
3）Run选项卡
可以查看Show configuration的配置。以下是我的配置。
# Doxyfile 1.8.8
#---------------------------------------------------------------------------
# Project related configuration options
#---------------------------------------------------------------------------
DOXYFILE_ENCODING = UTF-8
PROJECT_NAME = javautil
PROJECT_NUMBER =
PROJECT_BRIEF =
PROJECT_LOGO =
OUTPUT_DIRECTORY = E:/doxygenWorkspace/javautil
CREATE_SUBDIRS = NO
ALLOW_UNICODE_NAMES = NO
OUTPUT_LANGUAGE = English
BRIEF_MEMBER_DESC = YES
REPEAT_BRIEF = YES
ABBREVIATE_BRIEF = "The $name class"
"The $name widget"
"The $name file"
is
provides
specifies
contains
represents
a
an
the
"The $name class"
ALWAYS_DETAILED_SEC = NO
INLINE_INHERITED_MEMB = NO
FULL_PATH_NAMES = YES
STRIP_FROM_PATH =
STRIP_FROM_INC_PATH =
SHORT_NAMES = NO
JAVADOC_AUTOBRIEF = NO
QT_AUTOBRIEF = NO
MULTILINE_CPP_IS_BRIEF = NO
INHERIT_DOCS = YES
SEPARATE_MEMBER_PAGES = NO
TAB_SIZE = 4
ALIASES =
TCL_SUBST =
OPTIMIZE_OUTPUT_FOR_C = NO
OPTIMIZE_OUTPUT_JAVA = YES
OPTIMIZE_FOR_FORTRAN = NO
OPTIMIZE_OUTPUT_VHDL = NO
EXTENSION_MAPPING =
MARKDOWN_SUPPORT = YES
AUTOLINK_SUPPORT = YES
BUILTIN_STL_SUPPORT = NO
CPP_CLI_SUPPORT = NO
SIP_SUPPORT = NO
IDL_PROPERTY_SUPPORT = YES
DISTRIBUTE_GROUP_DOC = NO
SUBGROUPING = YES
INLINE_GROUPED_CLASSES = NO
INLINE_SIMPLE_STRUCTS = NO
TYPEDEF_HIDES_STRUCT = NO
LOOKUP_CACHE_SIZE = 0
#---------------------------------------------------------------------------
# Build related configuration options
#---------------------------------------------------------------------------
EXTRACT_ALL = YES
EXTRACT_PRIVATE = YES
EXTRACT_PACKAGE = NO
EXTRACT_STATIC = YES
EXTRACT_LOCAL_CLASSES = YES
EXTRACT_LOCAL_METHODS = YES
EXTRACT_ANON_NSPACES = NO
HIDE_UNDOC_MEMBERS = NO
HIDE_UNDOC_CLASSES = NO
HIDE_FRIEND_COMPOUNDS = NO
HIDE_IN_BODY_DOCS = NO
INTERNAL_DOCS = NO
CASE_SENSE_NAMES = NO
HIDE_SCOPE_NAMES = NO
SHOW_INCLUDE_FILES = YES
SHOW_GROUPED_MEMB_INC = NO
FORCE_LOCAL_INCLUDES = NO
INLINE_INFO = YES
SORT_MEMBER_DOCS = YES
SORT_BRIEF_DOCS = NO
SORT_MEMBERS_CTORS_1ST = NO
SORT_GROUP_NAMES = NO
SORT_BY_SCOPE_NAME = NO
STRICT_PROTO_MATCHING = NO
GENERATE_TODOLIST = YES
GENERATE_TESTLIST = YES
GENERATE_BUGLIST = YES
GENERATE_DEPRECATEDLIST= YES
ENABLED_SECTIONS =
MAX_INITIALIZER_LINES = 30
SHOW_USED_FILES = YES
SHOW_FILES = YES
SHOW_NAMESPACES = YES
FILE_VERSION_FILTER =
LAYOUT_FILE =
CITE_BIB_FILES =
#---------------------------------------------------------------------------
# Configuration options related to warning and progress messages
#---------------------------------------------------------------------------
QUIET = NO
WARNINGS = YES
WARN_IF_UNDOCUMENTED = YES
WARN_IF_DOC_ERROR = YES
WARN_NO_PARAMDOC = NO
WARN_FORMAT = "$file:$line: $text"
WARN_LOGFILE =
#---------------------------------------------------------------------------
# Configuration options related to the input files
#---------------------------------------------------------------------------
INPUT = E:/javatest
INPUT_ENCODING = UTF-8
FILE_PATTERNS = *.c
*.cc
*.cxx
*.cpp
*.c++
*.java
*.ii
*.ixx
*.ipp
*.i++
*.inl
*.idl
*.ddl
*.odl
*.h
*.hh
*.hxx
*.hpp
*.h++
*.cs
*.d
*.php
*.php4
*.php5
*.phtml
*.inc
*.m
*.markdown
*.md
*.mm
*.dox
*.py
*.f90
*.f
*.for
*.tcl
*.vhd
*.vhdl
*.ucf
*.qsf
*.as
*.js
RECURSIVE = NO
EXCLUDE =
EXCLUDE_SYMLINKS = NO
EXCLUDE_PATTERNS =
EXCLUDE_SYMBOLS =
EXAMPLE_PATH =
EXAMPLE_PATTERNS = *
EXAMPLE_RECURSIVE = NO
IMAGE_PATH =
INPUT_FILTER =
FILTER_PATTERNS =
FILTER_SOURCE_FILES = NO
FILTER_SOURCE_PATTERNS =
USE_MDFILE_AS_MAINPAGE =
#---------------------------------------------------------------------------
# Configuration options related to source browsing
#---------------------------------------------------------------------------
SOURCE_BROWSER = NO
INLINE_SOURCES = NO
STRIP_CODE_COMMENTS = YES
REFERENCED_BY_RELATION = NO
REFERENCES_RELATION = NO
REFERENCES_LINK_SOURCE = YES
SOURCE_TOOLTIPS = YES
USE_HTAGS = NO
VERBATIM_HEADERS = YES
CLANG_ASSISTED_PARSING = NO
CLANG_OPTIONS =
#---------------------------------------------------------------------------
# Configuration options related to the alphabetical class index
#---------------------------------------------------------------------------
ALPHABETICAL_INDEX = YES
COLS_IN_ALPHA_INDEX = 5
IGNORE_PREFIX =
#---------------------------------------------------------------------------
# Configuration options related to the HTML output
#---------------------------------------------------------------------------
GENERATE_HTML = YES
HTML_OUTPUT = html
HTML_FILE_EXTENSION = .html
HTML_HEADER =
HTML_FOOTER =
HTML_STYLESHEET =
HTML_EXTRA_STYLESHEET =
HTML_EXTRA_FILES =
HTML_COLORSTYLE_HUE = 220
HTML_COLORSTYLE_SAT = 100
HTML_COLORSTYLE_GAMMA = 80
HTML_TIMESTAMP = YES
HTML_DYNAMIC_SECTIONS = NO
HTML_INDEX_NUM_ENTRIES = 100
GENERATE_DOCSET = NO
DOCSET_FEEDNAME = "Doxygen generated docs"
DOCSET_BUNDLE_ID = org.doxygen.Project
DOCSET_PUBLISHER_ID = org.doxygen.Publisher
DOCSET_PUBLISHER_NAME = Publisher
GENERATE_HTMLHELP = NO
CHM_FILE =
HHC_LOCATION =
GENERATE_CHI = NO
CHM_INDEX_ENCODING =
BINARY_TOC = NO
TOC_EXPAND = NO
GENERATE_QHP = NO
QCH_FILE =
QHP_NAMESPACE = org.doxygen.Project
QHP_VIRTUAL_FOLDER = doc
QHP_CUST_FILTER_NAME =
QHP_CUST_FILTER_ATTRS =
QHP_SECT_FILTER_ATTRS =
QHG_LOCATION =
GENERATE_ECLIPSEHELP = NO
ECLIPSE_DOC_ID = org.doxygen.Project
DISABLE_INDEX = NO
GENERATE_TREEVIEW = YES
ENUM_VALUES_PER_LINE = 4
TREEVIEW_WIDTH = 250
EXT_LINKS_IN_WINDOW = NO
FORMULA_FONTSIZE = 10
FORMULA_TRANSPARENT = YES
USE_MATHJAX = NO
MATHJAX_FORMAT = HTML-CSS
MATHJAX_RELPATH = http://cdn.mathjax.org/mathjax/latest
MATHJAX_EXTENSIONS =
MATHJAX_CODEFILE =
SEARCHENGINE = YES
SERVER_BASED_SEARCH = NO
EXTERNAL_SEARCH = NO
SEARCHENGINE_URL =
SEARCHDATA_FILE = searchdata.xml
EXTERNAL_SEARCH_ID =
EXTRA_SEARCH_MAPPINGS =
#---------------------------------------------------------------------------
# Configuration options related to the LaTeX output
#---------------------------------------------------------------------------
GENERATE_LATEX = YES
LATEX_OUTPUT = latex
LATEX_CMD_NAME = latex
MAKEINDEX_CMD_NAME = makeindex
COMPACT_LATEX = NO
PAPER_TYPE = a4
EXTRA_PACKAGES =
LATEX_HEADER =
LATEX_FOOTER =
LATEX_EXTRA_FILES =
PDF_HYPERLINKS = YES
USE_PDFLATEX = YES
LATEX_BATCHMODE = NO
LATEX_HIDE_INDICES = NO
LATEX_SOURCE_CODE = NO
LATEX_BIB_STYLE = plain
#---------------------------------------------------------------------------
# Configuration options related to the RTF output
#---------------------------------------------------------------------------
GENERATE_RTF = NO
RTF_OUTPUT = rtf
COMPACT_RTF = NO
RTF_HYPERLINKS = NO
RTF_STYLESHEET_FILE =
RTF_EXTENSIONS_FILE =
#---------------------------------------------------------------------------
# Configuration options related to the man page output
#---------------------------------------------------------------------------
GENERATE_MAN = NO
MAN_OUTPUT = man
MAN_EXTENSION = .3
MAN_SUBDIR =
MAN_LINKS = NO
#---------------------------------------------------------------------------
# Configuration options related to the XML output
#---------------------------------------------------------------------------
GENERATE_XML = NO
XML_OUTPUT = xml
XML_PROGRAMLISTING = YES
#---------------------------------------------------------------------------
# Configuration options related to the DOCBOOK output
#---------------------------------------------------------------------------
GENERATE_DOCBOOK = NO
DOCBOOK_OUTPUT = docbook
DOCBOOK_PROGRAMLISTING = NO
#---------------------------------------------------------------------------
# Configuration options for the AutoGen Definitions output
#---------------------------------------------------------------------------
GENERATE_AUTOGEN_DEF = NO
#---------------------------------------------------------------------------
# Configuration options related to the Perl module output
#---------------------------------------------------------------------------
GENERATE_PERLMOD = NO
PERLMOD_LATEX = NO
PERLMOD_PRETTY = YES
PERLMOD_MAKEVAR_PREFIX =
#---------------------------------------------------------------------------
# Configuration options related to the preprocessor
#---------------------------------------------------------------------------
ENABLE_PREPROCESSING = YES
MACRO_EXPANSION = NO
EXPAND_ONLY_PREDEF = NO
SEARCH_INCLUDES = YES
INCLUDE_PATH =
INCLUDE_FILE_PATTERNS =
PREDEFINED =
EXPAND_AS_DEFINED =
SKIP_FUNCTION_MACROS = YES
#---------------------------------------------------------------------------
# Configuration options related to external references
#---------------------------------------------------------------------------
TAGFILES =
GENERATE_TAGFILE =
ALLEXTERNALS = NO
EXTERNAL_GROUPS = YES
EXTERNAL_PAGES = YES
PERL_PATH = /usr/bin/perl
#---------------------------------------------------------------------------
# Configuration options related to the dot tool
#---------------------------------------------------------------------------
CLASS_DIAGRAMS = YES
MSCGEN_PATH =
DIA_PATH =
HIDE_UNDOC_RELATIONS = YES
HAVE_DOT = YES
DOT_NUM_THREADS = 0
DOT_FONTNAME = Helvetica
DOT_FONTSIZE = 10
DOT_FONTPATH =
CLASS_GRAPH = YES
COLLABORATION_GRAPH = YES
GROUP_GRAPHS = YES
UML_LOOK = YES
UML_LIMIT_NUM_FIELDS = 10
TEMPLATE_RELATIONS = NO
INCLUDE_GRAPH = YES
INCLUDED_BY_GRAPH = YES
CALL_GRAPH = YES
CALLER_GRAPH = YES
GRAPHICAL_HIERARCHY = YES
DIRECTORY_GRAPH = YES
DOT_IMAGE_FORMAT = png
INTERACTIVE_SVG = YES
DOT_PATH = "D:/Program Files (x86)/Graphviz2.38/bin"
DOTFILE_DIRS =
MSCFILE_DIRS =
DIAFILE_DIRS =
PLANTUML_JAR_PATH =
DOT_GRAPH_MAX_NODES = 50
MAX_DOT_GRAPH_DEPTH = 0
DOT_TRANSPARENT = NO
DOT_MULTI_TARGETS = NO
GENERATE_LEGEND = YES
DOT_CLEANUP = YES
点Run doxygen即可开始解析并生成类之间的关系图。
点Show HTML output进行查看。选择Class->Class Hierarchy查看类的继承图。下图为java.util包中的类继承图的一部分，另存为可以查看大图。
