大家看看问题出在哪

[guobuliuhen]

package com.huaitianqi.lease;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

public class Test extends Properties {

public Test(){
InputStream is= getClass().getResourceAsStream("com/huaitianqi/lease/test.properties");
//创建一个流来读取文件名是test.properties,
try {
load(is);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub

System.out.println(new Test().getProperty("password")); //读取该文件中属性为"name"的值

}

}




报如下错误
Exception in thread "main" java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:418)
at java.util.Properties.load0(Properties.java:337)
at java.util.Properties.load(Properties.java:325)
at com.huaitianqi.lease.Test.<init>(Test.java:21)
at com.huaitianqi.lease.Test.main(Test.java:29)

[lclcyz]

[Quote=引用楼主 guobuliuhen 的回复:]
package com.huaitianqi.lease;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

public class Test extends Properties {

public Test(){
InputStream is= get……
[/Quote]
报空指针，说明new Test().getProperty("password")这句的问题。

[rushly]

package erp.bdm.apps;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

public class Test extends Properties {
public Test() {
InputStream is = getClass().getResourceAsStream("test.properties");
// 创建一个流来读取文件名是test.properties,
try {
load(is);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println(new Test().getProperty("password")); // 读取该文件中属性为"name"的值
}
}

[rushly]

把文件前面的路径 去掉

[guobuliuhen]

System.out.println(new Test().getProperty("password"));

我把这句写成Test ts = new Test();
System.out.println(ts.getProperty("password"));

报空指针

Test ts = new Test();这怎么可能有问题呢？
求教中。。。。。。。。。。。。。。。。。。。

[rushly]

2楼正解