T5 技巧 1：解决Form的提交乱码问题。

dengyin2000

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Tapestry IOC MySQL Apache Eclipse

现在正在使用T5开发一个小项目。因为现在T5还正处于发展中。而且没有像T4一样有许多的文档。和例子(Workbench, Vlib)。所以我会把在这个开发中遇到的一些问题记录下来。

tapestry5.0.5现在默认支持UTF-8编码。但是发现在form提交数据后。数据变成了乱码。

解决方案是增加一个Filter。

    public RequestFilter buildUtf8Filter(
        @InjectService("RequestGlobals") final RequestGlobals requestGlobals)
    {
        return new RequestFilter()
        {
            public boolean service(Request request, Response response, RequestHandler handler)
                throws IOException
            {
                requestGlobals.getHTTPServletRequest().setCharacterEncoding("UTF-8");
                return handler.service(request, response);
            }
        };
    }

然后contribute给RequestHandler。

    public void contributeRequestHandler(OrderedConfiguration<RequestFilter> configuration,
            @InjectService("TimingFilter") final RequestFilter timingFilter,
            @InjectService("Utf8Filter") final RequestFilter utf8Filter)
    {
        configuration.add("Utf8Filter", utf8Filter); // handle UTF-8
        configuration.add("Timing", timingFilter);
    }

以上代码都是放在AppModule.java中。。

参考：http://wiki.apache.org/tapestry/Tapestry5Utf8Encoding

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T5 技巧 2：为Grid组件的每一行增加“删除 ... | T5 developing with WTP and TOMCAT

2007-08-21 10:58
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29 楼 dengyin2000 2007-12-28

谁会用get去穿中文内容。一般get都是用来传ID的。

28 楼 liyong_2003_cn 2007-12-28

iorigod123 写道

小弟也碰到过这种问题，有upload组件就会提交成乱码，小弟的解决方法有点笨，就是搞个转换，居然可以成功转换，代码如下：
public static String getUTF8(String temp){
try{
return new String(temp.getBytes("iso-8859-1"),"utf-8");
}catch(Exception e){
return "";
}
}

象这种转换是最保险的，用filter的情况，对post提交是有效的，但是对get提交是无效的，这个跟post和get提交的机制有关系。以前项目遇到过这个问题，现在基本上都采用转换了，不用filter了，效率没仔细比较过，估计差不太多。

如果是get方式提交，应该设置server.xml中RUIEncoding="UTF-8"

27 楼 iorigod123 2007-12-28

26 楼 kris_xu 2007-09-05

如果是get方式提交，应该设置server.xml中RUIEncoding="UTF-8"

25 楼 kris_xu 2007-09-05

和form的提交方式有关吗？get?post?

24 楼 xo_tobacoo 2007-09-05

要解决乱码,首先要了解你的环境中那些位置涉及字符编码:
jsp页面要设置
开发工具要设置
连接数据库要设置
java包

最好的办法是使用楼主使用的方案,过滤器
在tomcat的示例里有个过滤器,拷贝过去,改下就可以了

23 楼 match927 2007-09-05

这个文件AppModule.java在那里？谢谢

22 楼 javersion 2007-08-28

你的表单提交方式是用的post还是get,如果是get,就会发生乱码!

21 楼 koda 2007-08-28

先在maillist上散一下:)

20 楼 Linuxboy 2007-08-28

将这个问题提交到jira吧

19 楼 koda 2007-08-28

我终于找到了问题发生的原因了！！！但是没有解决方案

真正的问题是：如果form里包含有上传文件的field,则其他textfield提交的中文乱码；或者，如果显式地在<form>标签中加入属性 enctype="multipart/form-data"则提交的textfield中文值乱码。

18 楼 dengyin2000 2007-08-24

我贴下我的吧。。跟你的也差不多。。 
 
 
<div class='code_title'>java 代码</div>
<div class='dp-highlighter'>
<div class='bar'> </div>
<ol class='dp-j' start='1'>
 <li class='alt'>package com.javaeye.dengyin2000.gtts.services; </li>
 <li class=''> </li>
 <li class='alt'>import java.io.IOException; </li>
 <li class=''>import java.math.BigDecimal; </li>
 <li class='alt'> </li>
 <li class=''>import org.apache.commons.logging.Log; </li>
 <li class='alt'>import org.apache.tapestry.Translator; </li>
 <li class=''>import org.apache.tapestry.ioc.MappedConfiguration; </li>
 <li class='alt'>import org.apache.tapestry.ioc.OrderedConfiguration; </li>
 <li class=''>import org.apache.tapestry.ioc.ServiceBinder; </li>
 <li class='alt'>import org.apache.tapestry.ioc.annotations.InjectService; </li>
 <li class=''>import org.apache.tapestry.services.Request; </li>
 <li class='alt'>import org.apache.tapestry.services.RequestFilter; </li>
 <li class=''>import org.apache.tapestry.services.RequestGlobals; </li>
 <li class='alt'>import org.apache.tapestry.services.RequestHandler; </li>
 <li class=''>import org.apache.tapestry.services.Response; </li>
 <li class='alt'> </li>
 <li class=''>import com.javaeye.dengyin2000.gtts.tapestry.BigDecimalTranslator; </li>
 <li class='alt'> </li>
 <li class=''>/** </li>
 <li class='alt'> * This module is automatically included as part of the Tapestry IoC Registry, it's a good place to </li>
 <li class=''> * configure and extend Tapestry, or to place your own service definitions. </li>
 <li class='alt'> */ </li>
 <li class=''>public class AppModule </li>
 <li class='alt'>{ </li>
 <li class=''> public static void bind(ServiceBinder binder) </li>
 <li class='alt'> { </li>
 <li class=''> // binder.bind(MyServiceInterface.class, MyServiceImpl.class); </li>
 <li class='alt'> </li>
 <li class=''> // Make bind() calls on the binder object to define most IoC services. </li>
 <li class='alt'> // Use service builder methods (example below) when the implementation </li>
 <li class=''> // is provided inline, or requires more initialization than simply </li>
 <li class='alt'> // invoking the constructor. </li>
 <li class=''> } </li>
 <li class='alt'> </li>
 <li class=''> </li>
 <li class='alt'> public static void contributeApplicationDefaults( </li>
 <li class=''> MappedConfiguration<String, String> configuration) </li>
 <li class='alt'> { </li>
 <li class=''> // Contributions to ApplicationDefaults will override any contributions to </li>
 <li class='alt'> // FactoryDefaults (with the same key). Here we're restricting the supported </li>
 <li class=''> // locales to just "en" (English). As you add localised message catalogs and other assets, </li>
 <li class='alt'> // you can extend this list of locales (it's a comma seperated series of locale names; </li>
 <li class=''> // the first locale name is the default when there's no reasonable match). </li>
 <li class='alt'> </li>
 <li class=''> configuration.add("tapestry.supported-locales", "en"); </li>
 <li class='alt'> } </li>
 <li class=''> </li>
 <li class='alt'> </li>
 <li class=''> /** </li>
 <li class='alt'> * This is a service definition, the service will be named "TimingFilter". The interface, </li>
 <li class=''> * RequestFilter, is used within the RequestHandler service pipeline, which is built from the </li>
 <li class='alt'> * RequestHandler service configuration. Tapestry IoC is responsible for passing in an </li>
 <li class=''> * appropriate Log instance. Requests for static resources are handled at a higher level, so </li>
 <li class='alt'> * this filter will only be invoked for Tapestry related requests. </li>
 <li class=''> * </li>
 <li class='alt'> * </li>
 <li class=''> * Service builder methods are useful when the implementation is inline as an inner class </li>
 <li class='alt'> * (as here) or require some other kind of special initialization. In most cases, </li>
 <li class=''> * use the static bind() method instead. </li>
 <li class='alt'> * </li>
 <li class=''> * </li>
 <li class='alt'> * If this method was named "build", then the service id would be taken from the </li>
 <li class=''> * service interface and would be "RequestFilter". Since Tapestry already defines </li>
 <li class='alt'> * a service named "RequestFilter" we use an explicit service id that we can reference </li>
 <li class=''> * inside the contribution method. </li>
 <li class='alt'> */ </li>
 <li class=''> public RequestFilter buildTimingFilter(final Log log) </li>
 <li class='alt'> { </li>
 <li class=''> return new RequestFilter() </li>
 <li class='alt'> { </li>
 <li class=''> public boolean service(Request request, Response response, RequestHandler handler) </li>
 <li class='alt'> throws IOException </li>
 <li class=''> { </li>
 <li class='alt'> long startTime = System.currentTimeMillis(); </li>
 <li class=''> </li>
 <li class='alt'> try </li>
 <li class=''> { </li>
 <li class='alt'> // The reponsibility of a filter is to invoke the corresponding method </li>
 <li class=''> // in the handler. When you chain multiple filters together, each filter </li>
 <li class='alt'> // received a handler that is a bridge to the next filter. </li>
 <li class=''> </li>
 <li class='alt'> return handler.service(request, response); </li>
 <li class=''> } </li>
 <li class='alt'> finally </li>
 <li class=''> { </li>
 <li class='alt'> long elapsed = System.currentTimeMillis() - startTime; </li>
 <li class=''> </li>
 <li class='alt'> log.info(String.format("Request time: %d ms", elapsed)); </li>
 <li class=''> } </li>
 <li class='alt'> } </li>
 <li class=''> }; </li>
 <li class='alt'> } </li>
 <li class=''> </li>
 <li class='alt'> public RequestFilter buildUtf8Filter( </li>
 <li class=''> @InjectService("RequestGlobals") final RequestGlobals requestGlobals) </li>
 <li class='alt'> { </li>
 <li class=''> return new RequestFilter() </li>
 <li class='alt'> { </li>
 <li class=''> public boolean service(Request request, Response response, RequestHandler handler) </li>
 <li class='alt'> throws IOException </li>
 <li class=''> { </li>
 <li class='alt'> requestGlobals.getHTTPServletRequest().setCharacterEncoding("UTF-8"); </li>
 <li class=''> return handler.service(request, response); </li>
 <li class='alt'> } </li>
 <li class=''> }; </li>
 <li class='alt'> } </li>
 <li class=''> </li>
 <li class='alt'> /** </li>
 <li class=''> * This is a contribution to the RequestHandler service configuration. This is how we extend </li>
 <li class='alt'> * Tapestry using the timing filter. A common use for this kind of filter is transaction </li>
 <li class=''> * management or security. </li>
 <li class='alt'> */ </li>
 <li class=''> public void contributeRequestHandler(OrderedConfiguration<RequestFilter> configuration, </li>
 <li class='alt'> @InjectService("TimingFilter") </li>
 <li class=''> RequestFilter filter, @InjectService("Utf8Filter") RequestFilter utf8Filter) </li>
 <li class='alt'> { </li>
 <li class=''> // Each contribution to an ordered configuration has a name, When necessary, you may </li>
 <li class='alt'> // set constraints to precisely control the invocation order of the contributed filter </li>
 <li class=''> // within the pipeline. </li>
 <li class='alt'> configuration.add("Utf8Filter", utf8Filter); </li>
 <li class=''> configuration.add("Timing", filter); </li>
 <li class='alt'> </li>
 <li class=''> } </li>
 <li class='alt'> </li>
 <li class=''> public static void contributeTranslatorDefaultSource( </li>
 <li class='alt'> MappedConfiguration<Class, Translator> configuration) </li>
 <li class=''> { </li>
 <li class='alt'> configuration.add(BigDecimal.class, new BigDecimalTranslator()); </li>
 <li class=''> } </li>
 <li class='alt'> </li>
 <li class=''> public static void contributeTranslatorSource( </li>
 <li class='alt'> MappedConfiguration<String, Translator> configuration) </li>
 <li class=''> { </li>
 <li class='alt'> configuration.add("bigdecimal", new BigDecimalTranslator()); </li>
 <li class=''> } </li>
 <li class='alt'>} </li>
</ol>
</div>

17 楼 koda 2007-08-23

代码也贴出来

package org.opend.bogo.services;

public class AppModule {
	public void contributeRequestHandler(
			OrderedConfiguration<RequestFilter> configuration,
			@InjectService("TimingFilter")
			final RequestFilter timingFilter, @InjectService("Utf8Filter")
			final RequestFilter utf8Filter) {
		configuration.add("Utf8Filter", utf8Filter); // handle UTF-8
	}

    public RequestFilter buildUtf8Filter(
            @InjectService("RequestGlobals") final RequestGlobals requestGlobals)
        {
            return new RequestFilter()
            {
                public boolean service(Request request, Response response, RequestHandler handler)
                    throws IOException
                {
                    requestGlobals.getHTTPServletRequest().setCharacterEncoding("utf-8");
                    return handler.service(request, response);
                }
            };
        }
}

16 楼 koda 2007-08-23

我在onSuccess里面插入数据库之前打印就是乱码
另外我创建数据库的时候用下面的语句
CREATE DATABASE bogo CHARACTER SET UTF8 COLLATE utf8_general_ci;

15 楼 dengyin2000 2007-08-23

koda 写道

引用

要记得清除开发环境和浏览器的缓存。

都清除了，也换成了jetty5.1.14. 问题依旧，绝望了:(

很有可能你的mysql数据库不是用的utf-8.

你可以调试下在你onSuccess里面看看提交后的java class的数据是不是乱码。

14 楼 Linuxboy 2007-08-23

那就奇怪了。我的开发环境是：XPsp2+mysql5(utf8)+eclipse3.3+jetty6.1.3+tapestry5.0.5
在form中输入中文提交后，中文显示正常。

13 楼 koda 2007-08-23

引用

要记得清除开发环境和浏览器的缓存。

都清除了，也换成了jetty5.1.14. 问题依旧，绝望了:(

12 楼 Linuxboy 2007-08-22

要记得清除开发环境和浏览器的缓存。

11 楼 dengyin2000 2007-08-22

koda 写道

引用

确定你的html 和 java 文件的编码用的是utf-8？ eclipse的话在文件上右键 ---》然后properties。

.java, .html采用UTF-8
数据库utf-8
环境:　WindowsXP + mysql5.0.18 + jetty5.1.12

乱码依旧:(

jetty5.1.14. mysql5. 在ubuntu 和windows xp下就没问题。。呵呵 RP有问题。

10 楼 koda 2007-08-22

引用

确定你的html 和 java 文件的编码用的是utf-8？ eclipse的话在文件上右键 ---》然后properties。

.java, .html采用UTF-8
数据库utf-8
环境:　WindowsXP + mysql5.0.18 + jetty5.1.12

乱码依旧:(

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