Tiles与Struts 2注释的集成 [英] Tiles Integration with Struts 2 Annotation

问题描述

我一直在尝试将Tiles与基于Struts 2注释的动作集成在一起，但是无法正常工作.

由于我没有struts-config.xml，因此在网络上提供的每个教程中，他们都使用struts-config.xml进行引用.

首先可以将基于注释的Struts动作与图块集成在一起.如果是，那怎么办?

@Action(value="/login",results={@Result(name="success",location="/home",type=TilesResult.class),
            @Result(name="login",location="/jsp/userLogin.jsp")})
    public String execute() {

这就是我的代码，但它总是在MyEclipse的TilesResult.class处给我错误

Type mismatch: cannot convert from Class<TilesResult> to String

我在pom中有依赖性:

<dependency>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts2-tiles-plugin</artifactId>
    <version>2.1.8</version>
</dependency>

任何人都可以帮助我如何在基于注释的操作中添加图块

---

我使用type="tiles"而不是type=TilesResult.class，但它给了我以下异常

Caused by: The Result type [tiles] which is defined in the Result annotation on the class [class com.actions.LoginAction] or determined by the file extension or is the default result type for the PackageConfig of the action, could not be found as a result-type defined for the Struts/XWork package [com.actions#convention-default#] - [unknown location]
    at org.apache.struts2.convention.DefaultResultMapBuilder.createResultConfig(DefaultResultMapBuilder.java:422)
    at org.apache.struts2.convention.DefaultResultMapBuilder.createFromAnnotations(DefaultResultMapBuilder.java:394)
    at org.apache.struts2.convention.DefaultResultMapBuilder.build(DefaultResultMapBuilder.java:202)
    at org.apache.struts2.convention.PackageBasedActionConfigBuilder.createActionConfig(PackageBasedActionConfigBuilder.java:800)
    at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildConfiguration(PackageBasedActionConfigBuilder.java:586)
    at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:318)
    at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:53)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:204)
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)

解决方案

尝试以下方法:

1. 使用type="tiles"代替type="TilesResult.class"

2. 在结果位置中使用目标图块定义location="tiles-definition-name"而不是JSP页面location="/jsp/userLogin.jsp"

3. 在web.xml中有以下内容:

   <context-param> <param-name>org.apache.tiles.impl.BasicTilesContainer.DEFINITIONS_CONFIG</param-name> <param-value>/WEB-INF/tiles.xml</param-value> </context-param> <listener> <listener-class>org.apache.struts2.tiles.StrutsTilesListener</listener-class> </listener>

4. 在struts.xml中有以下内容(如果您仅使用注释而没有使用struts.xml，则必须为此创建一个最小的注释，因为没有可用的注释来定义自定义结果类型)

   <struts> <constant name="struts.convention.default.parent.package" value="codeoftheday.blogspot.com"/> <package name="codeoftheday.blogspot.com" extends="struts-default"> <result-types> <result-type name="tiles" class="org.apache.struts2.views.tiles.TilesResult" /> </result-types> </package> </struts>

注意::我在此处就此问题撰写了详细的博客文章-

This is what my code is but it always gives me error in MyEclipse at TilesResult.class that

Type mismatch: cannot convert from Class<TilesResult> to String

I have dependency in my pom:

<dependency>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts2-tiles-plugin</artifactId>
    <version>2.1.8</version>
</dependency>

Can anyone help me how to add tiles in annotation based actions

---

I used type="tiles" instead of type=TilesResult.class then it has given me below exception

Caused by: The Result type [tiles] which is defined in the Result annotation on the class [class com.actions.LoginAction] or determined by the file extension or is the default result type for the PackageConfig of the action, could not be found as a result-type defined for the Struts/XWork package [com.actions#convention-default#] - [unknown location]
    at org.apache.struts2.convention.DefaultResultMapBuilder.createResultConfig(DefaultResultMapBuilder.java:422)
    at org.apache.struts2.convention.DefaultResultMapBuilder.createFromAnnotations(DefaultResultMapBuilder.java:394)
    at org.apache.struts2.convention.DefaultResultMapBuilder.build(DefaultResultMapBuilder.java:202)
    at org.apache.struts2.convention.PackageBasedActionConfigBuilder.createActionConfig(PackageBasedActionConfigBuilder.java:800)
    at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildConfiguration(PackageBasedActionConfigBuilder.java:586)
    at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:318)
    at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:53)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:204)
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)

解决方案

Try these :

1. Use type="tiles" instead of type="TilesResult.class"

2. Use your target tile definition, location="tiles-definition-name", instead of JSP page, location="/jsp/userLogin.jsp", in your result location

3. Have following in your web.xml:

   <context-param> <param-name>org.apache.tiles.impl.BasicTilesContainer.DEFINITIONS_CONFIG</param-name> <param-value>/WEB-INF/tiles.xml</param-value> </context-param> <listener> <listener-class>org.apache.struts2.tiles.StrutsTilesListener</listener-class> </listener>

4. Have following in your struts.xml (If you are using annotations alone and no struts.xml, then you have to create a minimal one for this because there's no annotation available to define a custom result type)

   <struts> <constant name="struts.convention.default.parent.package" value="codeoftheday.blogspot.com"/> <package name="codeoftheday.blogspot.com" extends="struts-default"> <result-types> <result-type name="tiles" class="org.apache.struts2.views.tiles.TilesResult" /> </result-types> </package> </struts>

NOTE: I've written a detailed blog post here on this issue - Maven, Struts2 Annotations and Tiles Integration Example via Convention / Codebehind / Zero Config plugin using Eclipse IDE

这篇关于Tiles与Struts 2注释的集成的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！