首先需要配置下SpringMVC默认视图,这里配置的是jsp
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
渲染jsp模板
如下代码所示,直接return Jsp模板的路径(不包括后缀)即可。将需要在页面读取的数据通过model.addAttribute
,在jsp页面直接可以el获取设置的变量
@RequestMapping(value="html", method=RequestMethod.GET)
public String prepare(Model model) {
model.addAttribute("foo", "bar");
model.addAttribute("fruit", "apple");
return "views/html";
}
jsp代码如下所示:
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page session="false" %>
<html>
<head>
<title>My HTML View</title>
<link href="<c:url value="/resources/form.css" />" rel="stylesheet" type="text/css" />
</head>
<body>
<div class="success">
<h3>foo: "${foo}"</h3>
<h3>fruit: "${fruit}"</h3>
</div>
</body>
</html>
默认请求路径作为模板名
如果Controller的方法返回void,则SpringMVC会将请求路径直接作为模板的路径,如下所示,下面会映射到viewName.jsp上。
@RequestMapping(value="/viewName", method=RequestMethod.GET)
public void usingRequestToViewNameTranslator(Model model) {
model.addAttribute("foo", "bar");
model.addAttribute("fruit", "apple");
}
使用路径变量
使用@PathVariable
可以读取url中传递的参数,SpringMVC会将方法中的参数合并到Model上去,这里不用显示的往Model里设置属性,在jsp可以直接用EL读取
@RequestMapping(value="pathVariables/{foo}/{fruit}", method=RequestMethod.GET)
public String pathVars(@PathVariable String foo, @PathVariable String fruit) {
// No need to add @PathVariables "foo" and "fruit" to the model
// They will be merged in the model before rendering
return "views/html";
}
数据绑定
如下代码所示,可以将url中的变量直接绑定到javabean上
@RequestMapping(value="dataBinding/{foo}/{fruit}", method=RequestMethod.GET)
public String dataBinding(@Valid JavaBean javaBean, Model model) {
// JavaBean "foo" and "fruit" properties populated from URI variables
return "views/dataBinding";
}
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