//读取配置文件(a.properties)
import java.util.Set;
import java.util.Iterator;
import java.util.Properties;
import java.io.IOException;
import java.io.InputStream;
class ReadProperties {
static Properties props = new Properties();
static{
ReadProperties test = new ReadProperties();
InputStream in = test.getClass().getResourceAsStream("/a.properties");;
try{
props.load(in);
} catch(IOException e){
e.printStackTrace();
}
}
//配置文件(a.properties)
A1(13)=E:/program/file/A100(28).txt
A1(24)=E:/program/file/A200(29).txt
//根据配置(a.properties)读取A100(28).txt和A200(29).txt文件。
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class ReadFile { /**
* @param args
* @throws IOException
*/
public static void main(String[] args){
// TODO Auto-generated method stub
File file = null;
//String c = null;
String[] b= new String[]{"A100(28)","A200(29)"};
String d= null;
for(String a:b){
System.out.println(ReadProperties.props.getProperty(a));
d = ReadProperties.props.getProperty(a);
}
file = new File(ReadProperties.props.getProperty(d));
if(!file.exists()){
System.out.println("对不起文件不存在!");
}
BufferedReader br = null;
//StringBuffer sb = new StringBuffer("");
FileReader fr = null;
try{
br = new BufferedReader(new FileReader(file));
String s = null;
while ((s = br.readLine())!=null) {
System.out.println(s.toString());
}
}catch(FileNotFoundException e){
e.printStackTrace();
}catch(IOException e){
e.printStackTrace();
}finally{
if(br != null && fr != null)
{
try {
br.close();
br = null;
fr.close();
fr = null;
} catch (IOException e) {
e.printStackTrace();
}
} }
}}
//大家帮忙看看为什么只能输出A200(29).txt中的数据呢?谢谢
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class ReadFile { /**
* @param args
* @throws IOException
*/
public static void main(String[] args){
// TODO Auto-generated method stub
File file = null;
//String c = null;
String[] b= new String[]{"A100(28)","A200(29)"};
String d=null;
for(String a:b){
//System.out.println(ReadProperties.props.getProperty(a));
d = ReadProperties.props.getProperty(a);
System.out.println(d);
}
file = new File(d);
if(!file.exists()){
System.out.println("对不起文件不存在!");
}
BufferedReader br = null;
//StringBuffer sb = new StringBuffer("");
FileReader fr = null;
try{
br = new BufferedReader(new FileReader(file));
String s = null;
while ((s = br.readLine())!=null) {
System.out.println(s.toString());
}
}catch(FileNotFoundException e){
e.printStackTrace();
}catch(IOException e){
e.printStackTrace();
}finally{
if(br != null && fr != null)
{
try {
br.close();
br = null;
fr.close();
fr = null;
} catch (IOException e) {
e.printStackTrace();
}
} }
}}
//System.out.println(ReadProperties.props.getProperty(a));
d = ReadProperties.props.getProperty(a);
System.out.println(d);
}
file = new File(d);
if(!file.exists()){
System.out.println("对不起文件不存在!");
}===》
for(String a:b){
//System.out.println(ReadProperties.props.getProperty(a));
d = ReadProperties.props.getProperty(a);
System.out.println(d);
file = new File(d);
if(!file.exists()){
System.out.println("对不起文件不存在!");
}
}
放到循环里也不对啊!在控制台也输出不了A100(28).txt文件中的内容哦
public static void main(String[] args){
// TODO Auto-generated method stub
File file = null;
//String c = null;
String[] b= new String[]{"A100(28)","A200(29)"};
String d=null;
for(String a:b){
//System.out.println(ReadProperties.props.getProperty(a));
d = ReadProperties.props.getProperty(a);
System.out.println(d);
file = new File(d);
if(!file.exists()){
System.out.println("对不起文件不存在!");
}
BufferedReader br = null;
//StringBuffer sb = new StringBuffer("");
FileReader fr = null;
try{
br = new BufferedReader(new FileReader(file));
String s = null;
while ((s = br.readLine())!=null) {
System.out.println(s.toString());
}
}catch(FileNotFoundException e){
e.printStackTrace();
}catch(IOException e){
e.printStackTrace();
}finally{
if(br != null && fr != null)
{
try {
br.close();
br = null;
fr.close();
fr = null;
} catch (IOException e) {
e.printStackTrace();
}
} }
}
}
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.ResourceBundle;public class ConfigTest {
public static ArrayList getSystemConfig() {
ArrayList al = new ArrayList();
ResourceBundle rs = null;
try {
rs = ResourceBundle.getBundle("a");
Enumeration enu = rs.getKeys();
while(enu.hasMoreElements()) {
al.add(rs.getString(enu.nextElement().toString()));
}
} catch (Exception e) {
e.printStackTrace();
}
return al;
}
}//根据配置(a.properties)读取A100(28).txt和A200(29).txt文件。
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;public class Test { /**
* @param args
* @throws IOException
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
File file = null;
ArrayList al = ConfigTest.getSystemConfig(); for(int i = 0;i<al.size();i++) {
file = new File(al.get(i).toString());
if (!file.exists()) {
System.out.println("对不起文件不存在!");
} else {
BufferedReader br = null;
// StringBuffer sb = new StringBuffer("");
FileReader fr = null;
try {
br = new BufferedReader(new FileReader(file));
String s = null;
while ((s = br.readLine()) != null) {
System.out.println(s.toString());
} } catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (br != null && fr != null) {
try {
br.close();
br = null;
fr.close();
fr = null;
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
}
}