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package
com.str;
public
class
ZiFuChuan {
public
static
String ss =
"全局變量!!!!!!"
;
String s2 =
null
;
public
int
aa =
1
;
int
aa2;
double
dou =
1.1
;
Double d =
new
Double(
1.1
);
public
static
void
main(String[] args) {}
public
ZiFuChuan(){}
public
ZiFuChuan(String st){}
public
ZiFuChuan(
int
orgInt,String orgString){}
public
static
void
tmpArr(
int
a[],String s,StringBuffer s2){}
}
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package
com.fanshe;
import
java.lang.reflect.Constructor;
import
java.lang.reflect.Field;
import
java.lang.reflect.Method;
import
java.lang.reflect.Modifier;
import
java.lang.reflect.Type;
import
com.str.ZiFuChuan;
public
class
GetClass {
public
static
void
main(String[] args)
throws
IllegalArgumentException, IllegalAccessException, InstantiationException {
// TODO Auto-generated method stub
Class classS = ZiFuChuan.
class
;
//獲取包
Package classPackage = classS.getPackage();
System.out.println(
"package "
+classPackage.getName());
//獲取類的修飾符
int
mod = classS.getModifiers();
String classModifier = Modifier.toString(mod);
System.out.println(classModifier +
" class ZiFuChuan {"
);
//調用全局變量方法
getFieldContent(classS);
//調用構造方法
getConstructorContent(classS);
//調用其他方法
getMethodContent(classS);
System.out.println(
"}"
);
}
/**
* 獲取所有全局變量
* @param classS
* @throws IllegalAccessException
* @throws IllegalArgumentException
* @throws InstantiationException
*/
public
static
void
getFieldContent(Class classS)
throws
IllegalArgumentException, IllegalAccessException, InstantiationException{
String typeName =
""
;
Field[] field = classS.getDeclaredFields();
for
(Field fi : field){
typeName = fi.getType().getName();
String xsfTmp = Modifier.toString(fi.getModifiers()) ;
//全局變量有修飾符的在變量前加修飾符並且修飾符和數據類型之間用空格分隔,否則不需要加空格
String xiushifu = xsfTmp.length() ==
0
?
""
: xsfTmp +
" "
;
String value = getValue(typeName,fi,classS);
if
(
"null"
.equals(value)||value ==
null
||
"null;"
.equals(value)){
System.out.println(
" "
+xiushifu+typeName+
" "
+fi.getName()+
"; "
);
}
else
{
System.out.println(
" "
+xiushifu+typeName+
" "
+fi.getName()+
" = "
+ getValue(typeName,fi,classS));
}
}
}
public
static
void
getConstructorContent(Class classS){
Constructor[] con = classS.getConstructors();
for
(Constructor c : con){
int
mod = c.getModifiers();
String ConstructorModifier = Modifier.toString(mod);
String constructorParameter = getConstructorParameter(c);
System.out.println(
" "
+ConstructorModifier+
" "
+ c.getName() +
"("
+constructorParameter+
"){"
);
System.out.println(
" }"
);
}
}
/**
* 獲取構造方法中的參數
* @param c
* @return
*/
public
static
String getConstructorParameter(Constructor c){
String qxTemp =
""
;
String qx =
""
;
int
con =
0
;
Class[] parameterTypeArr = c.getParameterTypes();
//獲取構造方法中的參數
for
(Class clas : parameterTypeArr){
qxTemp += clas.getTypeName() +
" org"
+con+
","
;
con++;
}
int
qxTempLength = qxTemp.length();
//去掉空參的構造方法
if
(qxTempLength >
0
){
qx = qxTemp.substring(
0
, qxTempLength-
1
);
}
return
qx;
}
/**
* 獲取除構造方法外其他的方法的邏輯
* @param classS
*/
public
static
void
getMethodContent(Class classS){
Method[] method = classS.getDeclaredMethods();
for
(Method m : method){
int
mod = m.getModifiers();
String methodModifier = Modifier.toString(mod);
//獲取方法返回值類型
Type type = m.getGenericReturnType();
String methodParameter = getMethodParameter(m);
System.out.println(
" "
+methodModifier +
" "
+ type.getTypeName() +
" "
+ m.getName() +
"("
+methodParameter+
"){"
);
System.out.println(
" }"
);
}
}
/**
* 獲取其他方法的參數
* @param m
* @return
*/
public
static
String getMethodParameter(Method m){
String qxTemp =
""
;
String qx =
""
;
int
con =
0
;
Class[] parameterTypeArr = m.getParameterTypes();
//獲取構造方法中的參數
for
(Class clas : parameterTypeArr){
qxTemp += clas.getTypeName()+
" org"
+con+
","
;
con++;
}
int
qxTempLength = qxTemp.length();
//去掉空參的構造方法
if
(qxTempLength >
0
){
qx = qxTemp.substring(
0
, qxTempLength-
1
);
}
return
qx;
}
/**
* 全局變量初始化值
* @param typeName
* @param fi
* @param classS
* @return
* @throws IllegalArgumentException
* @throws IllegalAccessException
* @throws InstantiationException
*/
public
static
String getValue(String typeName,Field fi,Class classS)
throws
IllegalArgumentException, IllegalAccessException, InstantiationException{
String value =
""
;
Object obj = classS.newInstance();
fi.setAccessible(
true
);
String[] types = {
"java.lang.Integer"
,
"java.lang.Double"
,
"java.lang.Float"
,
"java.lang.Long"
,
"java.lang.Short"
,
"java.lang.Byte"
,
"java.lang.Boolean"
,
"java.lang.Character"
,
"int"
,
"double"
,
"long"
,
"short"
,
"byte"
,
"boolean"
,
"char"
,
"float"
};
for
(String str : types) {
if
(fi.getType().getName().equals(
"java.lang.String"
)){
Object fiObj = fi.get(obj);
//判斷變量是否初始化
if
(fiObj !=
null
){
//String 類型參數需要用雙引號擴上
value =
"\""
+fiObj.toString()+
"\";"
;
}
else
{
value =
null
;
}
}
else
if
(fi.getType().getName().equals(str)){
value = fi.get(obj).toString()+
";"
;
}
}
return
value;
}
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