自定义视图和视图解析器的步骤:
1).编写自定义的视图解析器，和视图实现类。
自定义的视图要实现View对象
public class MyView implements View{
@Override
public String getContentType() {
return "text/html";
}
@Override
public void render(Map<String, ?> model, HttpServletRequest request,
HttpServletResponse response) throws Exception {
List<String> novels = (List<String>) model.get("novel");
response.setContentType("text/html;charset=utf-8");
response.getWriter().write("哈哈<br/><h1>欢迎阅读四大名著</h1></br>");
for(String n:novels){
response.getWriter().write(n+"<br/>");
}
}
}自定义的视图解析器要实现ViewResolver对象，如果配置了多个视图解析器，可以通过实现Ordered接口，设置视图解析器的优先级。
public class MyViewResolver implements ViewResolver, Ordered{
private Integer order = 0;
@Override
public View resolveViewName(String viewName, Locale locale)
throws Exception {
if(viewName.startsWith("novel:")){
return new MyView();
}else{
return null;
}
}
@Override
public int getOrder() {
return order;
}
public void setOrder(Integer order){
this.order = order;
}
}2).视图解析器放在ioc容器中。
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!-- order越小,优先级越大 -->
<bean class="com.view.MyViewResolver">
<property name="order" value="0"></property>
</bean>
