老师，我pop.xml、spring-servlet.xml、JsonMapper、ApplicationContextHelper、BeanValidator、TestController代码都对了一遍，在浏览器访问http://localhost:8080/test/validate.json/?id\=1\&msg\=123123，我的控制台提示的是

 Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level.

java.lang.IllegalArgumentException: Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986

at org.apache.coyote.http11.InternalInputBuffer.parseRequestLine(InternalInputBuffer.java:189)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1000)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Thread.java:748)

请求目标中发现无效字符。在RFC 7230和RFC 3986中定义了有效字符。

网页报错400

如果这么输入http://localhost:8080/test/validate.json/?id/=1/&msg/=123123网页显示{"ret":false,"msg":"System error","data":null}控制台提示com.mmall.exception.ParamException: {id=id不可以为空, str=不能为空, msg=不能为空}