hcz666的博客

javax.el.ELException错误:avax.el.ELException: Cannot convert [1] of type [class java.lang.Integer] to [class java.lang.Boolean] at org.apache.el.lang.ELSupport.coerceToBoolean(ELSupport.java:271) at org.apache.el.parser.AstChoice.getValue(AstChoice.java

javax.el.PropertyNotFoundException: 类型[java.lang.String]上找不到属性[id] javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:260) javax.el.BeanELResolver$BeanProperties.access$300(BeanELResolver.java:212) javax.el.BeanELResolver.property(BeanELReso

今天遇到这样一个异常：javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in <forEach>问题：又回头看了一下 控制器类发现原来传递的不是集合是一个对象控制器类@RequestMapping(value = "/cus/wz/detail",method = RequestMethod.GET) public String showOn

1、问题所在在使用spring框架中controller依赖user实体类，重载了其默认的构造方法。重载之后 默认的构造方法就会被覆盖。@Controller@RequestMapping(value="/user")public class HelloController{ @Resource private User user; @RequestMapping(value="/hello") public ModelAndView hello() { System.out.pr