package other;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Map;
import java.util.Properties;
public class Test {
private static Properties properties = new Properties();
//读取
public static Properties read(){
FileInputStream in =null;
try {
in = new FileInputStream("test.properties");
properties.load(in);
} catch (IOException e) {
e.printStackTrace();
}finally{
try {
if(in!=null){
in.close();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return properties;
}
//添加或者修改
public static void insertOrmodify(String ...strings){
for(int i=0;i<strings.length;i=i+2){
properties.setProperty(strings[i],strings[i+1]);
}
FileOutputStream out=null;
try {
out = new FileOutputStream("test.properties");
properties.store(out, "insertOrmodify");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
try {
if(out!=null){
out.close();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
//删除
public static void remove(String ...strings){
for(int i=0;i<strings.length;i++){
properties.remove(strings[i]);
}
FileOutputStream out=null;
try {
out = new FileOutputStream("test.properties");
properties.store(out, "remove");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
try {
if(out!=null){
out.close();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public static void main(String[] args) throws Exception {
Properties prop =read();
for(Map.Entry<Object, Object> entry:prop.entrySet()){
System.out.println(entry.getKey()+","+entry.getValue());
}
insertOrmodify("name","hh","age","28","sex","male");
remove("sex","name");
}
}
