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我是Spring MVC的新手，我不明白Spring如何知道它必須返回priceincrease.jsp，如果它沒有映射到控制器中的話？Spring如何知道要返回哪個視圖？
我不明白的另一件事是彈簧如何自動完成窗體動作？
我的控制器：
@Controller
@RequestMapping(value="/priceincrease.html")
public class PriceIncreaseFormController {
/** Logger for this class and subclasses */
protected final Log logger = LogFactory.getLog(getClass());
@Autowired
private ProductManager productManager;
@RequestMapping(method = RequestMethod.POST)
public String onSubmit(@Valid PriceIncrease priceIncrease, BindingResult result)
{
if (result.hasErrors()) {
return "priceincrease";
}
int increase = priceIncrease.getPercentage();
logger.info("Increasing prices by " + increase + "%.");
productManager.increasePrice(increase);
return "redirect:/hello.html";
}
@RequestMapping(method = RequestMethod.GET)
protected PriceIncrease formBackingObject(HttpServletRequest request) throws ServletException {
PriceIncrease priceIncrease = new PriceIncrease();
priceIncrease.setPercentage(15);
return priceIncrease;
}
public void setProductManager(ProductManager productManager) {
this.productManager = productManager;
}
public ProductManager getProductManager() {
return productManager;
}
}
這就是JSP控制器返回
<%@ include file="/WEB-INF/views/include.jsp" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<html>
<head>
<title><fmt:message key="title"/></title>
<style>
.error { color: red; }
</style>
</head>
<body>
<h1><fmt:message key="priceincrease.heading"/></h1>
<form:form method="post" commandName="priceIncrease">
<table width="95%" bgcolor="f8f8ff" border="0" cellspacing="0" cellpadding="5">
<tr>
<td align="right" width="20%">Increase (%):</td>
<td width="20%">
<form:input path="percentage"/>
</td>
<td width="60%">
<form:errors path="percentage" cssClass="error"/>
</td>
</tr>
</table>
<br>
<input type="submit" value="Execute">
</form:form>
<a href="<c:url value="hello.html"/>">Home</a>
</body>
</html>
UPDATE： 這裏是我的應用程序-config.xml中
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<bean id="productManager" class="com.mycompany.springapp.service.SimpleProductManager">
<property name="products">
<list>
<ref bean="product1"/>
<ref bean="product2"/>
<ref bean="product3"/>
</list>
</property>
</bean>
<bean id="product1" class="com.mycompany.springapp.domain.Product">
<property name="description" value="Lamp"/>
<property name="price" value="5.75"/>
</bean>
<bean id="product2" class="com.mycompany.springapp.domain.Product">
<property name="description" value="Table"/>
<property name="price" value="75.25"/>
</bean>
<bean id="product3" class="com.mycompany.springapp.domain.Product">
<property name="description" value="Chair"/>
<property name="price" value="22.79"/>
</bean>
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
<property name="basename" value="messages"/>
</bean>
<!-- Scans the classpath of this application for @Components to deploy as beans -->
<context:component-scan base-package="com.mycompany.springapp.web" />
<!-- Configures the @Controller programming model -->
<mvc:annotation-driven/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
<property name="prefix" value="/WEB-INF/views/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
什麼的'彈簧servlet.xml'？通常情況下，映射會告訴「jsp」文件的根目錄，並且要使用的「jsp」與控制器上的「@ RequestMapping」具有相同的路徑和名稱。 – Kevin 2014-10-03 22:28:11
我已經添加了你問的xml。你能告訴spring如何知道它必須返回priceincrease.jsp而不是其他jsp？ – Martin 2014-10-03 22:37:27