ava.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:434)
at java.util.Properties.load0(Properties.java:353)
at java.util.Properties.load(Properties.java:341)
at 作业.Dbutil.DbUtil.<clinit>(DbUtil.java:20)
at 作业.Dbutil.Tmp.查(Tmp.java:46)
at 作业.day1.测试.demo.cha(demo.java:13)
at 作业.day1.测试.demo.main(demo.java:10)
Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class 作业.Dbutil.DbUtil
at 作业.Dbutil.Tmp.查(Tmp.java:61)
at 作业.day1.测试.demo.cha(demo.java:13)
at 作业.day1.测试.demo.main(demo.java:10)
为啥你的项目名称要用中文。。。中文作为路径无法解析的