关于jsptag中teiclass的使用

//ListAllBodyTagExtraInfo.java
public class ListAllBodyTagExtraInfo extends TagExtraInfo {
public ListAllBodyTagExtraInfo() { }
/**
* 让JSP引擎确定参数类型
*/
public VariableInfo[] getVariableInfo(TagData data) {
　return new VariableInfo[] {
　/**
　* 参数名，类型，是否声明新变量，范围
　* 范围取值：AT_BEGIN,AT_END,NESTED(标记有效范围内)
　*/
　　new VariableInfo("name", "java.lang.String", true, VariableInfo.NESTED) ,
　　new VariableInfo("value", "java.lang.Integer", true, VariableInfo.NESTED),
　};
}
}
定义该函数后，声明正确的tld，可以这么使用

<definetag attr1="value">
<%=name%>is <%=value%>
</definetag>

VariableInfo

public VariableInfo(java.lang.String varName,
                    java.lang.String className,
                    boolean declare,
                    int scope)

Constructor These objects can be created (at translation time) by the TagExtraInfo instances.

参数：

varName - The name of the scripting variable

className - The type of this variable

declare - If true, it is a new variable (in some languages this will require a declaration)

scope - Indication on the lexical scope of the variable

字段摘要

static int
AT_BEGIN
          Scope information that scripting variable is visible after start tag.

static int
AT_END
          Scope information that scripting variable is visible after end tag.

static int
NESTED
          Scope information that scripting variable is visible only within the start/end tags.