javabean中的setproperty使用时候报错

ljm19891118 2010-06-24 11:01:42

ljm.java



package ljm;



public class Ljm {

private String num;

private String name;

private String sex;

private String birth;

private String zhuanyeNum;

private String beizhu;

public Ljm(){}

public String getNum() {

	return num;

}

public void setNum(String num) {

	this.num = num;

}

public String getName() {

	return name;

}

public void setName(String name) {

	this.name = name;

}

public String getSex() {

	return sex;

}

public void setSex(String sex) {

	this.sex = sex;

}

public String getBirth() {

	return birth;

}

public void setBirth(String birth) {

	this.birth = birth;

}

public String getZhuanyeNum() {

	return zhuanyeNum;

}

public void setZhuanyeNum(String zhuanyeNum) {

	this.zhuanyeNum = zhuanyeNum;

}

public String getBeizhu() {

	return beizhu;

}

public void setBeizhu(String beizhu) {

	this.beizhu = beizhu;

}



}

wuliao.jsp



<%@ page language="java" contentType="text/html; charset=GBK"

    pageEncoding="GBk"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=GBK">

<title>作用域</title>

</head>

<body>

<form  name="form1" method="post" action="javabean.jsp">

学号:<input type="text" name="num" />

姓名:<input type="text" name="name" />

性别:<input type="text" name="sex" />

生日:<input type="text" name="birth" />

备注:<input type="text" name="beizhu" />

<input type="submit" name="Submit" value="提交 "/>

</form>



</body>

</html>

...全文

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ljm19891118 2010-06-24

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嗯收到～

closewbq 2010-06-24

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'<%=request.getParameter("sex") %>'
value=后不能直接加表达式
得加引号

ljm19891118 2010-06-24

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我上面错误的代码就是按照这弄的
不知道为什么报错
我觉得我格式都是对的

closewbq 2010-06-24

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注意：
1.<jsp:useBean>和<jsp:setProperty>必须一起使用
2.setProperty的name就是useBean中的id

ljm19891118 2010-06-24

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错误信息如下

ljm19891118 2010-06-24

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<%@ page language="java" contentType="text/html; charset=GBK"

    pageEncoding="GBk"%>



<jsp:useBean id="ljm"  class="ljm.Ljm" scope="session"></jsp:useBean>

<jsp:setProperty name="ljm" property="*"/>







学号:<jsp:getProperty name="ljm" property="num" /><br/>

姓名:<jsp:getProperty name="ljm" property="name" /><br/>

 性别:<jsp:getProperty name="ljm" property="sex" /><br/>

生日:<jsp:getProperty name="ljm" property="birth" /><br/>

备注:<jsp:getProperty name="ljm" property="beizhu" /><br/>

ljm19891118 2010-06-24

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javabean.jsp



<%@ page language="java" contentType="text/html; charset=GBK"

    pageEncoding="GBk"%>



<jsp:useBean id="ljm"  class="ljm.Ljm" scope="session"></jsp:useBean>

<jsp:setProperty name="ljm" property="num" value=<%=request.getParameter("num") %>/>

<jsp:setProperty name="ljm" property="name" value=<%=request.getParameter("name") %>/>

 <jsp:setProperty name="ljm" property="sex" value=<%=request.getParameter("sex") %>/>

 <jsp:setProperty name="ljm" property="birth" value=<%=request.getParameter("birth") %>/>

 <jsp:setProperty name="ljm" property="beizhu" value=<%=request.getParameter("beizhu") %>/>









学号:<jsp:getProperty name="ljm" property="num" /><br/>

姓名:<jsp:getProperty name="ljm" property="name" /><br/>

 性别:<jsp:getProperty name="ljm" property="sex" /><br/>

生日:<jsp:getProperty name="ljm" property="birth" /><br/>

备注:<jsp:getProperty name="ljm" property="beizhu" /><br/>