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package
com.str;
public
class
ZiFuChuan {
public
static
String ss =
"全局变量!!!!!!"
;
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
;
//获取包
Package classPackage = classS.getPackage();
System.out.println(
"package "
+classPackage.getName());
//获取类的修饰符
int
mod = classS.getModifiers();
String classModifier = Modifier.toString(mod);
System.out.println(classModifier +
" class ZiFuChuan {"
);
//调用全局变量方法
getFieldContent(classS);
//调用构造方法
getConstructorContent(classS);
//调用其他方法
getMethodContent(classS);
System.out.println(
"}"
);
}
/**
* 获取所有全局变量
* @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()) ;
//全局变量有修饰符的在变量前加修饰符并且修饰符和数据类型之间用空格分隔,否则不需要加空格
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(
" }"
);
}
}
/**
* 获取构造方法中的参数
* @param c
* @return
*/
public
static
String getConstructorParameter(Constructor c){
String qxTemp =
""
;
String qx =
""
;
int
con =
0
;
Class[] parameterTypeArr = c.getParameterTypes();
//获取构造方法中的参数
for
(Class clas : parameterTypeArr){
qxTemp += clas.getTypeName() +
" org"
+con+
","
;
con++;
}
int
qxTempLength = qxTemp.length();
//去掉空参的构造方法
if
(qxTempLength >
0
){
qx = qxTemp.substring(
0
, qxTempLength-
1
);
}
return
qx;
}
/**
* 获取除构造方法外其他的方法的逻辑
* @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);
//获取方法返回值类型
Type type = m.getGenericReturnType();
String methodParameter = getMethodParameter(m);
System.out.println(
" "
+methodModifier +
" "
+ type.getTypeName() +
" "
+ m.getName() +
"("
+methodParameter+
"){"
);
System.out.println(
" }"
);
}
}
/**
* 获取其他方法的参数
* @param m
* @return
*/
public
static
String getMethodParameter(Method m){
String qxTemp =
""
;
String qx =
""
;
int
con =
0
;
Class[] parameterTypeArr = m.getParameterTypes();
//获取构造方法中的参数
for
(Class clas : parameterTypeArr){
qxTemp += clas.getTypeName()+
" org"
+con+
","
;
con++;
}
int
qxTempLength = qxTemp.length();
//去掉空参的构造方法
if
(qxTempLength >
0
){
qx = qxTemp.substring(
0
, qxTempLength-
1
);
}
return
qx;
}
/**
* 全局变量初始化值
* @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);
//判断变量是否初始化
if
(fiObj !=
null
){
//String 类型参数需要用双引号扩上
value =
"\""
+fiObj.toString()+
"\";"
;
}
else
{
value =
null
;
}
}
else
if
(fi.getType().getName().equals(str)){
value = fi.get(obj).toString()+
";"
;
}
}
return
value;
}
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