[英]Parse JSON string in Java
I'm trying to parse a JSON string in Java but I cant figure out how! 我正在尝试解析Java中的JSON字符串,但是我不知道怎么做! I'm using lib-JSON right now:
我现在正在使用lib-JSON:
import net.sf.json.*;
. 。
String jsonStr = "{'string':'JSON', 'integer': 1, 'double': 2.0, 'boolean': true}";
JSONObject jsonObj = (JSONObject) JSONSerializer.toJSON(jsonStr); // this line crashes
I get no compilation errors but when i run the program it says: 我没有编译错误,但是当我运行程序时它说:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/lang/exception/NestableRuntimeException
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at ircbot.plugins.SiteTitle.<init>(SiteTitle.java:28)
at ircbot.Main.main(Main.java:10)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang.exception.NestableRuntimeException
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 14 more
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
It sounds like I'm missing some dependencies, but I don't know how to find out if or which! 听起来好像我缺少一些依赖项,但是我不知道如何找出是否或哪个!
Thanks in advance! 提前致谢!
It seems you have not imported need jar file for class "org.apache.commons.lang.exception.NestableRuntimeException" 看来您尚未为类“ org.apache.commons.lang.exception.NestableRuntimeException”导入需要的jar文件。
There are many classes that we use in our Java program and which don't come with Java. 我们在Java程序中使用了很多类,而Java没有附带这些类。 So we need to put Suitable Jar file for them.
因此,我们需要为他们放置适当的Jar文件。
You are missing jar file. No jar file in your class path.
看到此读取JSON文件错误
org / apache / commons / lang-> http://commons.apache.org/lang/基本上,使用Google并获取相应的jar。
您的JSON字符串也无效,这是有效的JSON,
{"string": "JSON","integer": "1","double": "2.0","boolean": "true" }
These are the dependencies - 这些是依赖项-
are you sure you added all of them in your classpath. 您确定已将所有它们添加到类路径中。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.