我有异常类型:org.springframework.beans.factory.BeanCreationException 满堆:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.view.ContentNegotiatingViewResolver#0' defined in ServletContext resource [/WEB-INF/dispatcher-servlet.xml]: Cannot create inner bean 'org.szymon.email.classes.MyMapperClass#1e222db' of type [org.szymon.email.classes.MyMapperClass] while setting bean property 'defaultViews' with key [1]; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.szymon.email.classes.MyMapperClass] for bean with name 'org.szymon.email.classes.MyMapperClass#1e222db' defined in ServletContext resource [/WEB-INF/dispatcher-servlet.xml]; nested exception is java.lang.ClassNotFoundException: org.szymon.email.classes.MyMapperClass
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:282)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:121)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:353)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:154)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1417)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1158)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
我的dispatcher-servlet.xml:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<context:component-scan base-package="org.szymon.email.*" />
<tx:annotation-driven />
<mvc:annotation-driven />
<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<property name="favorPathExtension" value="true"/>
<property name="mediaTypes">
<map>
<entry key="json" value="application/json"/>
<entry key="jsonp" value="application/javascript"/>
</map>
</property>
<property name="defaultViews">
<list>
<bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView"/>
<bean class="org.szymon.email.classes.MyMapperClass"/>
</list>
</property>
</bean>
</beans>
和我的MyMapperClass:
package org.szymon.email.classes;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.view.json.MappingJacksonJsonView;
public class MyMapperClass extends MappingJacksonJsonView {
/**
* Default content type. Overridable as bean property.
*/
public static final String DEFAULT_CONTENT_TYPE = "application/javascript";
@Override
public String getContentType() {
return DEFAULT_CONTENT_TYPE;
}
/**
* Prepares the view given the specified model, merging it with static
* attributes and a RequestContext attribute, if necessary.
* Delegates to renderMergedOutputModel for the actual rendering.
* @see #renderMergedOutputModel
*/
@Override
public void render(Map<String, ?> model, HttpServletRequest request, HttpServletResponse response) throws Exception {
if("GET".equals(request.getMethod().toUpperCase())) {
@SuppressWarnings("unchecked")
Map<String, String[]> params = request.getParameterMap();
if(params.containsKey("callback")) {
response.getOutputStream().write(new String(params.get("callback")[0] + "(").getBytes());
super.render(model, request, response);
response.getOutputStream().write(new String(");").getBytes());
response.setContentType("application/javascript");
}
else {
super.render(model, request, response);
}
}
else {
super.render(model, request, response);
}
}
}
这是从问题中解决问题的延续: Spring RESTful ajax gets error
还有一件有趣的事情。 当我像这样对这个bean发表评论时:
<!-- <bean class="org.szymon.email.classes.MyMapperClass"/> -->
在我的控制器上的方法中创建这个类的实例并调用它的render方法,然后一切都很好......但这不是正确的解决方案。
请帮忙。 干杯
答案 0 :(得分:0)
问题似乎是构建 - 与IDE相关。我能够从IntellIJ IDEA运行项目,也可以通过执行Maven构建并将生成的war放在Tomcat的webapps
目录中。
我建议你做一个Maven clean-compile-package再试一次