我正在尝试从 springapp-servlet.xml 设置值，但它无法通过提供错误消息来设置属性
无法将类型 [java.lang.String] 的属性值转换为属性“productManager”所需的类型 [ProductManager]；嵌套异常是 java.lang.IllegalArgumentException：无法将类型 [java.lang.String] 的值转换为属性“productManager”所需的类型 [ProductManager]：找不到匹配的编辑器或转换策略
我的代码
springapp-servlet.xml
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<?xml version="1.0" encoding="UTF-8"?>
<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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<bean id="productManager" class="SimpleProductManager">
<property name="products">
<list>
<ref bean="product1"/>
<ref bean="product2"/>
</list>
</property>
</bean>
<bean id="product1" class="Product">
<property name="description" value="Chair"/>
</bean>
<bean id="product2" class="Product">
<property name="description" value="Desk"/>
</bean>
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
<property name="basename" value="messages"/>
</bean>
<bean name="/hello.htm" class="HelloController">
<property name="productManager" value="productManager"/>
</bean>
<!-- we can prefix="/"
http://localhost:8080/HelloSpring/hello.htm
specify the path in modelview from the controller
OR
Decouple the view from the controller
prefix="/WEB-INF/jsp/"
-->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/"
p:suffix=".jsp" />
</beans>
你好控制器
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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author gopc
*/
import java.util.Date;
import java.util.Map;
import java.util.HashMap;
import org.springframework.web.servlet.mvc.Controller;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.io.IOException;
public class HelloController implements Controller {
private ProductManager productManager;
protected final Log logger = LogFactory.getLog(getClass());
//Writing some business logic in the controller
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
String now = (new java.util.Date()).toString();
logger.info("returning hello view with " + now);
Map<String, Object> myModel = new HashMap<String, Object>();
myModel.put("now", now);
myModel.put("products", this.productManager.getProducts());
return new ModelAndView("hello", "model", myModel);
}
public void setProductManager(ProductManager productManager)
{
this.productManager = productManager;
}
}
简单产品经理
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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author gopc
*/
import java.util.List;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.Log;
public class SimpleProductManager implements ProductManager{
private List<Product> products;
protected final Log logger = LogFactory.getLog(getClass());
public List<Product> getProducts()
{
logger.info("inside getProducts ");
return products;
}
public void increasePrice (int per)
{
if (products != null)
{
for (Product prod : products)
{
double newPrice = prod.getPrice() * (100 + per) /100;
prod.setPrice(newPrice);
}
}
}
public void setProducts(List <Product> products )
{
logger.info("inside setProducts ");
this.products = products;
}
}