sitemesh导致页面不能正常显示问题
今天测试平台时,发现一个页面只显示了一半,后半截没了,用dw验证了一个html,没发现什么问题,想了一下,问题只能出在sitemesh上,于是把sitemesh先注释掉,果然这个页面可以正常显示了.
注:这个页面是以前的,没有用到sitemesh控制布局结构,我把该页面改为用sitemesh布局后,也能正常显示.
web.xml中配置的过滤器:?

1. <filter>??
2. ????<filter-name>Acegi?Filter?Chain?Proxy</filter-name>??
3. ????<filter-class>org.acegisecurity.util.FilterToBeanProxy</filter-class>??
4. ????<init-param>??
5. ????????<param-name>targetClass</param-name>??
6. ????????<param-value>org.acegisecurity.util.FilterChainProxy</param-value>??
7. ????</init-param>??
8. </filter>??
9. <filter>??
10. ????<filter-name>webwork-cleanup</filter-name>??
11. ????<filter-class>com.opensymphony.webwork.dispatcher.ActionContextCleanUp</filter-class>??
12. </filter>??
13. <filter>??
14. ????<filter-name>sitemesh</filter-name>??
15. ????<filter-class>com.opensymphony.webwork.sitemesh.FreeMarkerPageFilter</filter-class>??
16. </filter>??
17. <filter>??
18. ????<filter-name>webwork</filter-name>??
19. ????<filter-class>com.opensymphony.webwork.dispatcher.FilterDispatcher</filter-class>??
20. </filter>??
21. ??
22. <filter-mapping>??
23. ????<filter-name>Acegi?Filter?Chain?Proxy</filter-name>??
24. ????<url-pattern>/*</url-pattern>??
25. </filter-mapping>??
26. <filter-mapping>??
27. ????????<filter-name>webwork-cleanup</filter-name>??
28. ????????<url-pattern>/*</url-pattern>??
29. </filter-mapping>??
30. <filter-mapping>??
31. ????????<filter-name>sitemesh</filter-name>??
32. ????????<url-pattern>/*</url-pattern>??
33. </filter-mapping>??
34. <filter-mapping>??
35. ????????<filter-name>webwork</filter-name>??
36. ????????<url-pattern>*.action</url-pattern>??
37. </filter-mapping>??

siteMesh.xml配置如下:?

1. <sitemesh>??
2. ????<property?name="decorators-file"?value="/WEB-INF/decorators.xml"/>??
3. ????<excludes?file="${decorators-file}"/>??
4. ??
5. ????<page-parsers>??
6. ????????<parser?content-type="text/html"?class="com.opensymphony.module.sitemesh.parser.FastPageParser"/>??
7. ????????<parser?content-type="text/html;charset=UTF-8"??
8. ????????????class="com.opensymphony.module.sitemesh.parser.HTMLPageParser"?/>??
9. ????</page-parsers>??
10. ??
11. ????<decorator-mappers>??
12. ??
13. ????????<mapper?class="com.opensymphony.module.sitemesh.mapper.PageDecoratorMapper">??
14. ????????????<param?name="property.1"?value="meta.decorator"/>??
15. ????????????<param?name="property.2"?value="decorator"/>??
16. ????????</mapper>??
17. ??
18. ????????<mapper?class="com.opensymphony.module.sitemesh.mapper.FrameSetDecoratorMapper">??
19. ????????</mapper>??
20. ??
21. ????????<mapper?class="com.opensymphony.module.sitemesh.mapper.AgentDecoratorMapper">??
22. ????????????<param?name="match.MSIE"?value="ie"/>??
23. ????????????<param?name="match.Mozilla?["?value="ns"/>??
24. ????????????<param?name="match.Opera"?value="opera"/>??
25. ????????????<param?name="match.Lynx"?value="lynx"/>??
26. ????????</mapper>??
27. ??
28. ????????<mapper?class="com.opensymphony.module.sitemesh.mapper.PrintableDecoratorMapper">??
29. ????????????<param?name="decorator"?value="printable"/>??
30. ????????????<param?name="parameter.name"?value="printable"/>??
31. ????????????<param?name="parameter.value"?value="true"/>??
32. ????????</mapper>??
33. ??
34. ????????<mapper?class="com.opensymphony.module.sitemesh.mapper.RobotDecoratorMapper">??
35. ????????????<param?name="decorator"?value="robot"/>??
36. ????????</mapper>??
37. ??
38. ????????<mapper?class="com.opensymphony.module.sitemesh.mapper.ParameterDecoratorMapper">??
39. ????????????<param?name="decorator.parameter"?value="decorator"/>??
40. ????????????<param?name="parameter.name"?value="confirm"/>??
41. ????????????<param?name="parameter.value"?value="true"/>??
42. ????????</mapper>??
43. ??
44. ????????<mapper?class="com.opensymphony.module.sitemesh.mapper.FileDecoratorMapper">??
45. ????????</mapper>??
46. ??
47. ????????<mapper?class="com.opensymphony.module.sitemesh.mapper.ConfigDecoratorMapper">??
48. ????????????<param?name="config"?value="${decorators-file}"/>??
49. ????????</mapper>??
50. ??
51. ????</decorator-mappers>??
52. ??
53. </sitemesh>??

我的表示层用的是Freemarker,在项目里不是直接访问Freemarker的,都有有webwork的action转发过去的.
个人觉得可能是以下原因:
1,sitemesh对页面的大小有限制,只能输出大小为一定量的响应流.??
2,配置有问题,可能是那里配置有误,或者是acegi过滤器和sitemesh是否会冲突??
那位遇到同样的问题或者有好的解决方案,大家探讨一下. 1 楼 LucasLee 2007-06-12 就我的经验来说一般不会有大小的限制,而是页面在中间出错了,导致只输出了一半,仔细检查异常信息. 2 楼 Sunteya 2007-06-12 sitemesh 的一个典型错误是 会在中文环境下设置错误的 Content Length
你可以看看 springside 的 UnicodePageFilter 3 楼 weishuwei 2007-06-19 查看sitemesh API,发现对FastPageParser的解释,原来FastPageParser将被HTMLPageParser替代
Deprecated. Use HTMLPageParser instead - it performs better and is more extensible. 4 楼 我想我是海 2007-06-19 <excludes>
<pattern>/exclude/*</pattern>
</excludes> 5 楼 weishuwei 2007-06-20 感谢"我想我是海"的建议,该项我已经配置过了,还是会出现上述情况.

ps:看sitemesh api,说是FastPageParser将被HTMLPageParser替代,于是把配置文件中的FastPageParser改为HTMLPageParser,结果导致siteMesh不能工作!!!狂晕中 6 楼 firmgoal 2007-06-21 有可能是被修饰页面设置了contentLength，导致修饰出的页面的contentLength有问题。如果是这种情况，修改一下com.opensymphony.webwork.sitemesh.FreeMarkerPageFilter，加上response.setContentLength(-1)就行。 7 楼 pure 2007-06-21 我也遇到过这个问题,好像只需要在这个页面也加上sitemesh标签就行了!