直接上代码
package com.cwap;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.lang.reflect.Field;
public class ConvertJavaVO2FlexVO {
private static final String[] simpleJavaTypeName = {"String", "Date", "BigDecimal", "Decimal", "Double",
"Long", "long", "Integer", "int", "Boolean", "boolean"};
private static final String[] simpleFlexTypeName = {"String", "Date", "Number", "Number", "Number",
"Number", "Number", "int", "int", "boolean", "boolean"};
private static final String[] complexJavaTypeName = {"java.util.List", "java.util.Collection"};
private static final String[] complexFlexTypeName = {"IList", "ICollectionView"};
private static final String[] complexFlexImportName = {"mx.collections.IList", "mx.collections.ICollectionView"};
private static String getSimpleTypeName(Class c) {
String simpleTypeName = c.getSimpleName();
String result = null;
for (int i = 0; i < simpleJavaTypeName.length; i++) {
if (simpleJavaTypeName[i].equals(simpleTypeName)) {
result = simpleFlexTypeName[i];
break;
}
}
return result;
}
private static int getComplexJavaTypeIndex(String typeName) {
int result = ⑴;
for (int i = 0; i < complexJavaTypeName.length; i++) {
if (complexJavaTypeName[i].equals(typeName)) {
result = i;
break;
}
}
return result;
}
private static String getComplexTypeName(Class c) {
String typeName = c.getName();
int index = getComplexJavaTypeIndex(typeName);
if (index > ⑴)
return complexFlexTypeName[index];
return null;
}
// 根据java类对象的类型返回vo类型
@SuppressWarnings("unchecked")
public static String getClassType(Class c) {
String result = getSimpleTypeName(c);
if (judgeNotEmptyStr(result))
return result;
result = getComplexTypeName(c);
if (judgeNotEmptyStr(result))
return result;
return "*";// 其它类型的设置为未知类型
}
// 重复c字符count次，用于格式化生成的as文件
public static String repeat(String c, int count) {
StringBuffer strBuf = new StringBuffer();
for (int i = 0; i < count; i++) {
strBuf.append(c);
}
return strBuf.toString();
}
/**
* 生成FLex POJO
*
* @param pojoName
* java POJO的名称
* @param packageName
* Flex包的名称
* @param folder
* Flex包所在的路径
* @throws ClassNotFoundException
* @throws IOException
*/
@SuppressWarnings("unchecked")
public static void generateAsFile(String pojoName, String packageName,
String folder) throws ClassNotFoundException, IOException {
Class c = Class.forName(pojoName);
Field[] fields = c.getDeclaredFields();
// as的vo对象名称结尾加上VO标志
File f = new File(getVOFileName(folder, packageName, c));
BufferedWriter bw = new BufferedWriter(new FileWriter(f));
StringBuffer contentBuf = new StringBuffer();
createPackageName(packageName, c, contentBuf);
createImport(fields, contentBuf);
createBindInfo(pojoName, contentBuf);
createClassHeader(c, contentBuf);
createProperites(fields, contentBuf);
contentBuf.append("
");
createEmptyConstructor(c, contentBuf);
createGetSetFunction(fields, contentBuf);
contentBuf.append(genTabChars());
contentBuf.append("}
");
contentBuf.append("}");
bw.write(contentBuf.toString());
bw.close();
}
private static void createImport(Field[] fields, StringBuffer strBuf) {
strBuf.append("
");
// 写属性
for (int i = 0; i < fields.length; i++) {
Class fieldType = fields[i].getType();
int index = getComplexJavaTypeIndex(fieldType.getName());
if (index > ⑴) {
strBuf.append(genTabChars());
strBuf.append("import ");
strBuf.append(complexFlexImportName[index]);
strBuf.append(";
");
}
}
strBuf.append("
");
}
private static void createProperites(Field[] fields, StringBuffer strBuf) {
// 写属性
for (int i = 0; i < fields.length; i++) {
Class fieldType = fields[i].getType();
String typeName = getClassType(fieldType);
strBuf.append(genFunctionTabChars());
strBuf.append("private var _");
strBuf.append(fields[i].getName());
strBuf.append(":");
strBuf.append(typeName);
strBuf.append(";
");
}
}
private static void createGetSetFunction(Field[] fields,
StringBuffer contentBuf) {
// 写 setter/getter 方法
for (int i = 0; i < fields.length; i++) {
Class fieldType = fields[i].getType();
String typeName = getClassType(fieldType);
createSetFunction(fields, contentBuf, i, typeName);
createGetFunction(fields, contentBuf, i, typeName);
}
}
private static void createClassHeader(Class c, StringBuffer contentBuf) {
// 写类
contentBuf.append(genTabChars());
contentBuf.append("public class ");
contentBuf.append(c.getSimpleName());
contentBuf.append("VO
");
contentBuf.append(genTabChars());
contentBuf.append("{
");
}
private static void createEmptyConstructor(Class c, StringBuffer strBuf) {
// 写空的构造函数
strBuf.append(genFunctionTabChars());
strBuf.append("public function ");
strBuf.append(c.getSimpleName());
strBuf.append("VO(){}
");
}
private static void createFolder(String folderName) {
try {
File myPath = new File(folderName);
if (!myPath.exists()) {
myPath.mkdirs();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private static String getVOFileName(String folder, String packageName,
Class c) {
String fd = folder;
if (judgeNotEmptyStr(fd)) {
if (!folder.endsWith(File.separator))
fd += File.separator;
}
String p1 = packageName;
if (!judgeNotEmptyStr(packageName))
p1 = c.getPackage().getName();
fd += p1.replace('.', File.separatorChar) + File.separator;
createFolder(fd);
return fd + c.getSimpleName() + "VO.as";
}
private static boolean judgeNotEmptyStr(String value) {
return (null != value) && (value.length() > 0);
}
private static void createGetFunction(Field[] fields, StringBuffer strBuf,
int i, String typeName) {
// getter
strBuf.append(genFunctionTabChars());
strBuf.append("public function get ");
strBuf.append(fields[i].getName());
strBuf.append("():");
strBuf.append(typeName);
strBuf.append("{
");
strBuf.append(genContentTabChars());
strBuf.append("return this._");
strBuf.append(fields[i].getName());
strBuf.append(";
");
genFunctionEnd(strBuf);
}
private static void genFunctionEnd(StringBuffer strBuf) {
strBuf.append(genFunctionTabChars() + "}
");
}
private static void createSetFunction(Field[] fields, StringBuffer strBuf,
int i, String typeName) {
// setter
strBuf.append(genFunctionTabChars());
strBuf.append("public function set ");
strBuf.append(fields[i].getName());
strBuf.append("(value:");
strBuf.append(typeName);
strBuf.append("):void{
");
strBuf.append(genContentTabChars());
strBuf.append("this._");
strBuf.append(fields[i].getName());
strBuf.append(" = value;
");
genFunctionEnd(strBuf);
}
private static String getCountTabChars(int count) {
StringBuffer strBuff = new StringBuffer();
for(int i = 0; i < count; i++)
{
strBuff.append(genTabChars());
}
return strBuff.toString();
}
private static String genContentTabChars() {
return getCountTabChars(3);
}
private static String genFunctionTabChars() {
return getCountTabChars(2);
}
private static void createBindInfo(String pojoName, StringBuffer strBuf) {
// 写Bind头
strBuf.append(genTabChars());
strBuf.append("[Bindable]
");
strBuf.append(genTabChars());
strBuf.append("[RemoteClass(alias="");
strBuf.append(pojoName);
strBuf.append("")]
");
}
private static String genTabChars() {
return repeat(" ", 4);
}
private static void createPackageName(String packageName, Class c,
StringBuffer strBuf) {
// 包名，没有设置包名就取和java pojo1样的包名
if ((null != packageName) && (packageName.trim().length() > 1)) {
strBuf.append("package " + c.getPackage().getName() + "
{
");
} else {
strBuf.append("package " + packageName + "
{
");
}
}
// 生成的主程序
public static void main(String[] args) throws ClassNotFoundException,
IOException {
String[] pojos = { "com.cwap.Person" };
for (int i = 0; i < pojos.length; i++) {
ConvertJavaVO2FlexVO.generateAsFile(pojos[i],
"com.cwap",
"D:工作区myworkspace estsrc");
}
}
}