我有一个使用 xml 配置的 struts2 映射的旧项目。我想让它更新鲜一点并使用注释映射,就像在 spring mvc 中那样。所以我发现,struts2 允许这样做。但是在我添加之后
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-convention-plugin</artifactId>
<version>${org.apache.struts.version}</version>
</dependency>
到我的 pom xml。我的 xml 配置停止工作。
这是我的struts.xml
:
<action name="my/home" class="my.dhblah.MyAction">
<result type="redirectAction">my/home/search</result>
</action>
我从 maven pom 中删除了插件。我调试了struts,我在DefaultActionInvocation.createResult()
网上看到proxy.getConfig()
的内容如下:
result = {com.opensymphony.xwork2.config.entities.ActionConfig@10444}"{ActionConfig my/home (my.dhblah.MyAction) - null}"
interceptors = {java.util.Collections$UnmodifiableRandomAccessList@10447} size = 20
params = {java.util.Collections$UnmodifiableMap@10448} size = 0
results = {java.util.Collections$UnmodifiableMap@10449} size = 2
exceptionMappings = {java.util.Collections$UnmodifiableRandomAccessList@10450} size = 1
className = {java.lang.String@10451}"my.dhblah.MyAction"
methodName = null
packageName = {java.lang.String@10452}"my"
name = {java.lang.String@10453}"my/home"
allowedMethods = {java.util.Collections$UnmodifiableSet@10454} size = 1
location = null
当我展开"results"
部分时,我看到两个结果映射"success"
和"exception"
在我启用插件后,pom.xml
我在同一行看到以下内容:
config = {com.opensymphony.xwork2.config.entities.ActionConfig@10457}"{ActionConfig home (my.dhblah.MyAction.execute()) - null}"
interceptors = {java.util.Collections$UnmodifiableRandomAccessList@10460} size = 18
params = {java.util.Collections$UnmodifiableMap@10461} size = 0
results = {java.util.Collections$UnmodifiableMap@10462} size = 0
exceptionMappings = {java.util.Collections$UnmodifiableRandomAccessList@10463} size = 0
className = {java.lang.String@10464}"my.dhblah.MyAction"
methodName = {java.lang.String@10395}"execute"
packageName = {java.lang.String@10465}"my.dhblah#convention-default#/my"
name = {java.lang.String@10466}"home"
allowedMethods = {java.util.Collections$UnmodifiableSet@10467} size = 1
location = null
在我点击该网址后,出现以下错误:
Struts Problem Report
Struts has detected an unhandled exception:
Messages:
No result defined for action my.dhblah.MyAction and result success
Stacktraces
No result defined for action my.dhblah.MyAction and result success
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:373)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:275)
org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)
我没有向 中添加@Action
注释MyAction
,但似乎约定插件Action
在查看 xml 配置之前选择了旧类并构建了映射配置,这就是为什么我有一个错误,即没有任何内容映射到"success"
结果上。
有人遇到过这个问题以及如何解决吗?