一个最简单的 JavaBeanMaker(原创)
类别: JAVA教程 
只实现最简单功能,自动生成setter,getter当bean中属性较多时可以节省时间:
Usage: java JavaBeanMaker aaa.txt bbb
1. aaa.txt is the text file in following style,you can get a example--jeru.txt in attachment
======================
int id
String name
int age
======================
2 bbb is the file name of your javabean without .java,so if you want a Test.java
just type "Java JavaBeanMaker aaa.txt Test"
================= jeru.txt ==========================
int id
String name
int age
================= JavaBeanMaker.java ================
import java.io.*;
import java.util.*;
public class JavaBeanMaker {
public static void main(String[] args) {
System.out.println("Reading datas......");
try {
// read properties of source text file
int i = 0;
String record = new String();
Vector property = new Vector();
RandomAccessFile source = new RandomAccessFile(args[0],"r");
while ((record = source.readLine()) != null) {
i ++;
property.addElement(record);
}
source.close();
RandomAccessFile destine = new RandomAccessFile(args[1],"rw");
String content = "// This JavaBean is make by Jeru\'s JavaBeanMaker" + "/r/n/r/n";
content += "public class " + args[1] + " {" + "/r/n/r/n";
String[] tmp = new String[3];
for (i=0; i<property.size(); i++) {
String str = (String)property.elementAt(i);
//System.out.println("Value " + i + ":" + str);
StringTokenizer tokens = new StringTokenizer(str);
for (int j=0; j<=1; j++) {
tmp[j] = tokens.nextToken();
System.out.println("token: " + tmp[j]);
}
// capital tmp[1]
tmp[2] = tmp[1].substring(0,1).toUpperCase() + tmp[1].substring(1);
System.out.println(tmp[2]);
content += " " + tmp[0] + " " + tmp[1] + ";" + "/r/n";
content += " " + "public void set" + tmp[2] + "(" + tmp[1] + ") {" + "/r/n";
content += " " + "this." + tmp[1] + " = " + tmp[1] + ";" + "/r/n";
content += " " + "}" + "/r/n";
content += " " + "public " + tmp[0] + " get" + tmp[2] + "() {" + "/r/n";
content += " " + "return " + tmp[1] + ";" + "/r/n";
content += " " + "}" + "/r/n/r/n";
}
System.out.println("the last content is " + content);
content += "}";
destine.writeBytes(content);
destine.close();
} catch(Exception e){ e.getMessage(); }
}
}
Usage: java JavaBeanMaker aaa.txt bbb
1. aaa.txt is the text file in following style,you can get a example--jeru.txt in attachment
======================
int id
String name
int age
======================
2 bbb is the file name of your javabean without .java,so if you want a Test.java
just type "Java JavaBeanMaker aaa.txt Test"
================= jeru.txt ==========================
int id
String name
int age
================= JavaBeanMaker.java ================
import java.io.*;
import java.util.*;
public class JavaBeanMaker {
public static void main(String[] args) {
System.out.println("Reading datas......");
try {
// read properties of source text file
int i = 0;
String record = new String();
Vector property = new Vector();
RandomAccessFile source = new RandomAccessFile(args[0],"r");
while ((record = source.readLine()) != null) {
i ++;
property.addElement(record);
}
source.close();
RandomAccessFile destine = new RandomAccessFile(args[1],"rw");
String content = "// This JavaBean is make by Jeru\'s JavaBeanMaker" + "/r/n/r/n";
content += "public class " + args[1] + " {" + "/r/n/r/n";
String[] tmp = new String[3];
for (i=0; i<property.size(); i++) {
String str = (String)property.elementAt(i);
//System.out.println("Value " + i + ":" + str);
StringTokenizer tokens = new StringTokenizer(str);
for (int j=0; j<=1; j++) {
tmp[j] = tokens.nextToken();
System.out.println("token: " + tmp[j]);
}
// capital tmp[1]
tmp[2] = tmp[1].substring(0,1).toUpperCase() + tmp[1].substring(1);
System.out.println(tmp[2]);
content += " " + tmp[0] + " " + tmp[1] + ";" + "/r/n";
content += " " + "public void set" + tmp[2] + "(" + tmp[1] + ") {" + "/r/n";
content += " " + "this." + tmp[1] + " = " + tmp[1] + ";" + "/r/n";
content += " " + "}" + "/r/n";
content += " " + "public " + tmp[0] + " get" + tmp[2] + "() {" + "/r/n";
content += " " + "return " + tmp[1] + ";" + "/r/n";
content += " " + "}" + "/r/n/r/n";
}
System.out.println("the last content is " + content);
content += "}";
destine.writeBytes(content);
destine.close();
} catch(Exception e){ e.getMessage(); }
}
}
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