以下Treemap
拥有我传递的数据库中的所有值
Map<String, String> treeMap = new TreeMap<String, String>(map);
Iterator mapIterator = mapSet.iterator();
while (mapIterator.hasNext()) {
Map.Entry mapEntry = (Map.Entry) mapIterator.next();
String keyValue = (String) mapEntry.getKey();
String value = (String) mapEntry.getValue();
System.out.println("Key : " + keyValue + "= Value : " + value);
}
request.setAttribute("airline_name", treeMap);
在JSP页面中:
<html:select property="airline_name_value" styleId = "tempId" >
<html:options collection="airline_name" property="key" labelProperty="key" />
</html:select>
ActionForm
:
private String airline_name;
public String getAirline_name() {
return airline_name;
}
public void setAirline_name(String airline_name) {
this.airline_name = airline_name;
}
错误:
org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: Cannot find bean under name airline_name
还有其他方法可以使用html:options
收藏代码吗?
答案 0 :(得分:1)
另一种方法是不使用html:options
,而是使用html:optionsCollection
。
<html:optionsCollection property="airlines" label="value" value="key" />
要使其正常工作,您应该以
的形式映射属性private Map<String, String> airlines;
public Map<String, String> getAirlines() {
return airlines;
}
public void setAirlines(Map<String, String> airlines) {
this.airlines = airlines;
}
在行动中
form.setAirlines(treeMap);