I think it was caused by gvSIG after reading the following ciation. And I have
successfully run geoserver in tomcat before I installed gvSIG and the tomcat is
clearly works well.
-------------------------------------------------- Citation
--------------------------------------------
This happens because there are two conflicting JAI modules around, and with
different versions. GeoServer uses and depends on JAI 1.1.2, whilst the JAI
that ends up in the classpath in the above example is most probably 1.1 or
older.
This can happen for one of two reasons:
an external application (may be gvSig, Jump or some other application using
JAI) have installed in the main Java runtime the JAI jars in
<yourJdk>/jre/lib/ext. In this position the jars override the classpath of
whatever application is running on the virtual machine.
JAI下载地址:
https://jai.dev.java.net/binary-builds.html
the web container has old JAI jars in the shared libraries, that are usually
put in the classpath before the application ones.
In the first case, you can solve the problem by grabbing the JAI installers
from the [jai main site], lastest stable version, and run it to overwrite the
old JAI version.
In the second case, download the pure java version of JAI from the same site
and overwrite the jars in the shared libraries, or alternatively find a way to
make your web container load the application jars before the shared lib ones
(how to do this, if possible at all, is web container dependent, consult your
container documentation).
---------------------------------------Ciation---------------------------------------------
However, I installed JAI by running jai-1_1_3-lib-windows-i586-jdk.exe and
jai_imageio-1_1-lib-windows-i586-jdk.exe according to the ciation, but it did
not solve the problem.
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