import
java.io.BufferedReader
;
import
java.io.File
;
import
java.io.FileNotFoundException
;
import
java.io.FileReader
;
import
java.io.IOException
;
import
java.util.ArrayList
;
/**
* 代码行数统计
* @author finalist
* @version 2014-7-22
*/
public
class
CodeCounter
{
/**
* 代码行数统计
*/
public
static
void
main
(
String
[]
args
)
{
String
file
=
CodeCounter
.
class
.
getResource
(
"/"
).
getFile
();
String
path
=
file
.
replace
(
"target/test-classes"
,
"src"
);
ArrayList
<
File
>
al
=
getFile
(
new
File
(
path
));
for
(
File
f
:
al
)
{
if
(
f
.
getName
().
matches
(
".*\\.java$"
)){
// 匹配java格式的文件
count
(
f
);
System
.
out
.
println
(
f
);
}
}
System
.
out
.
println
(
"统计文件："
+
files
);
System
.
out
.
println
(
"代码行数："
+
codeLines
);
System
.
out
.
println
(
"注释行数："
+
commentLines
);
System
.
out
.
println
(
"空白行数："
+
blankLines
);
}
static
long
files
=
0
;
static
long
codeLines
=
0
;
static
long
commentLines
=
0
;
static
long
blankLines
=
0
;
static
ArrayList
<
File
>
fileArray
=
new
ArrayList
<
File
>();
/**
* 获得目录下的文件和子目录下的文件
* @param f
* @return
*/
public
static
ArrayList
<
File
>
getFile
(
File
f
)
{
File
[]
ff
=
f
.
listFiles
();
for
(
File
child
:
ff
)
{
if
(
child
.
isDirectory
())
{
getFile
(
child
);
}
else
fileArray
.
add
(
child
);
}
return
fileArray
;
}
/**
* 统计方法
* @param f
*/
private
static
void
count
(
File
f
)
{
BufferedReader
br
=
null
;
boolean
flag
=
false
;
try
{
br
=
new
BufferedReader
(
new
FileReader
(
f
));
String
line
=
""
;
while
((
line
=
br
.
readLine
())
!=
null
)
{
line
=
line
.
trim
();
// 除去注释前的空格
if
(
line
.
matches
(
"^[ ]*$"
))
{
// 匹配空行
blankLines
++;
}
else
if
(
line
.
startsWith
(
"//"
))
{
commentLines
++;
}
else
if
(
line
.
startsWith
(
"/*"
)
&&
!
line
.
endsWith
(
"*/"
))
{
commentLines
++;
flag
=
true
;
}
else
if
(
line
.
startsWith
(
"/*"
)
&&
line
.
endsWith
(
"*/"
))
{
commentLines
++;
}
else
if
(
flag
==
true
)
{
commentLines
++;
if
(
line
.
endsWith
(
"*/"
))
{
flag
=
false
;
}
}
else
{
codeLines
++;
}
}
files
++;
}
catch
(
FileNotFoundException
e
)
{
e
.
printStackTrace
();
}
catch
(
IOException
e
)
{
e
.
printStackTrace
();
}
finally
{
if
(
br
!=
null
)
{
try
{
br
.
close
();
br
=
null
;
}
catch
(
IOException
e
)
{
e
.
printStackTrace
();
}
}
}
}
}