view resolver

glossary

ViewResolver

根据controller返回的logic view name 生成View实例

public interface ViewResolver {
  View resolveViewName(String viewName, Locale locale)
throws Exception;
}

JSP tag libraries

form-to-model binding

<%@ taglib uri="http://www.springframework.org/tags/form" prefix="sf" %>

spring’s general tag library

<%@ taglib uri="http://www.springframework.org/tags" prefix="s" %>

View

将model数据渲染到response

public interface View {
  String getContentType();
  void render(Map<String, ?> model,
              HttpServletRequest request,
              HttpServletResponse response) throws Exception;
}

常用的 view resolvers

https://docs.spring.io/spring/docs/current/spring-framework-reference/htmlsingle/#mvc-viewresolver

InternalResourceViewResolver

• 解析view name到对应的jsp文件， 支持JSTL
• 可以加前缀或者加后缀来匹配文件
• 如果使用jstl，要配置ViewClass

configure view resolver

注入View Resolver bean:

• JavaConfig

@Bean
public ViewResolver viewResolver() {
  InternalResourceViewResolver resolver = new InternalResourceViewResolver();
  resolver.setPrefix("/WEB-INF/views/");
  resolver.setSuffix(".jsp");
  resolver.setViewClass(org.springframework.web.servlet.view.JstlView.class);
  return resolver;
}

• xml configuration

<bean id="viewResolver"
              class="org.springframework.web.servlet.view.
                                InternalResourceViewResolver"
              p:prefix="/WEB-INF/views/"
              p:suffix=".jsp"
              p:viewClass="org.springframework.web.servlet.view.JstlView" />