java查询已经安装的软件列表

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextPane;

public class CheckSoftware {
private JFrame f = new JFrame("已经安装的软件列表");
private JTextPane textPane = new JTextPane();
private MyTable myTable=new MyTable();

public CheckSoftware() {
f.setLocation(300, 200);
f.setSize(800,500);
JScrollPane jScrollPane = new JScrollPane(myTable.getTable());
f.add(jScrollPane);
f.setVisible(true);
f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);

try {
check();
} catch (Exception e) {
e.printStackTrace();
}
}

private void check() throws Exception {
textPane.setText("您已经安装的软件：");
Runtime runtime = Runtime.getRuntime();
Process process = null;
process = runtime
.exec("cmd /c reg query HKEY_LOCAL_MACHINE//SOFTWARE//Microsoft//Windows//CurrentVersion//Uninstall//");
BufferedReader in = new BufferedReader(new InputStreamReader(process
.getInputStream()));
String string = null;
while ((string = in.readLine()) != null) {
process = runtime.exec("cmd /c reg query " + string
+ " /v DisplayName");
BufferedReader name = new BufferedReader(new InputStreamReader(
process.getInputStream()));
String[] message = queryValue(string);
if(message!=null) myTable.addRow(message);
f.repaint();
}
in.close();
process.destroy();

}

//具体查询每一个软件的详细信息
private String[] queryValue(String string) throws IOException {
String nameString = "";
String versionString = "";

String publisherString="";
String uninstallPathString = "";

Runtime runtime = Runtime.getRuntime();
Process process = null;
BufferedReader br=null;

process = runtime.exec("cmd /c reg query " + string + " /v DisplayName");
br = new BufferedReader(new InputStreamReader(process
.getInputStream()));
br.readLine();br.readLine();//去掉前两行无用信息
if((nameString=br.readLine())!=null){
nameString=nameString.replaceAll("DisplayName    REG_SZ    ", "");	//去掉无用信息
}

process = runtime.exec("cmd /c reg query " + string + " /v DisplayVersion");
br = new BufferedReader(new InputStreamReader(process
.getInputStream()));
br.readLine();br.readLine();//去掉前两行无用信息
if((versionString=br.readLine())!=null){
versionString=versionString.replaceAll("DisplayVersion    REG_SZ    ", "");	//去掉无用信息
}

process = runtime.exec("cmd /c reg query " + string + " /v Publisher");
br = new BufferedReader(new InputStreamReader(process
.getInputStream()));
br.readLine();br.readLine();//去掉前两行无用信息
if((publisherString=br.readLine())!=null){
publisherString =publisherString.replaceAll("Publisher    REG_SZ    ", "");	//去掉无用信息
}

process = runtime.exec("cmd /c reg query " + string + " /v UninstallString");
br = new BufferedReader(new InputStreamReader(process
.getInputStream()));
br.readLine();br.readLine();//去掉前两行无用信息
if((uninstallPathString=br.readLine())!=null){
uninstallPathString=uninstallPathString.replaceAll("UninstallString    REG_SZ    ", "");	//去掉无用信息
}

String[] resultString=new String[4];
resultString[0]=nameString;
resultString[1]=versionString;
resultString[2]=publisherString;
resultString[3]=uninstallPathString;
if(resultString[0]==null) resultString=null;	//没有名字的不显示
return resultString;
}

public static void main(String[] args) {
new CheckSoftware();
}

//列表
private class MyTable{
private JTable jTable;
private Object[][] data=new Object[100][4];
private Object[] colNames= { "软件名称","版本号","出版商","卸载路径"};
private int p=-1;

public MyTable(){

}

public void addRow(Object[] data){
p++;
if(p>=100) return ;
this.data[p]=data;
}

public JTable getTable(){
jTable=new JTable(data,colNames);
return jTable;
}

}

}