JSP userBean setProperty直接从request中获取参数
2015-10-26 08:35
525 查看
JSP userBean setProperty直接从request中获取参数：
form表单Jsp：
获取表单参数JSP：
获取表单参数JSP的servlet：
POJO：
form表单Jsp：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page isELIgnored="true"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>008index</title> </head> <body> <form action="index015.jsp" method="post"> <input type="text" name="userName"> <input type="submit" value="submitUserName"> </form> <form action="index015.jsp" method="post"> <input type="text" name="name"> <input type="submit" value="submitName"> </form> <form action="index015.jsp" method="post"> <input type="text" name="name"> <input type="text" name="age"> <input type="submit" value="submitNameAge"> </form> </body> </html>
获取表单参数JSP：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ page isELIgnored="true"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>008index</title>
</head>
<body>
<p>
<jsp:useBean id="person" class="com.stono.servlet.bean.Person">
<jsp:setProperty name="person" property="name" param="userName1"></jsp:setProperty>
</jsp:useBean>
Name is <jsp:getProperty property="name" name="person"/>
<pre>
此处生成的servlet java文件为：
org.apache.jasper.runtime.JspRuntimeLibrary.introspecthelper(_jspx_page_context.findAttribute("person"), "name", request.getParameter("userName1"), request, "userName1", false);
</pre>
</p>
<p>
<jsp:useBean id="person2" class="com.stono.servlet.bean.Person">
<jsp:setProperty name="person2" property="name" ></jsp:setProperty>
</jsp:useBean>
Name is <jsp:getProperty property="name" name="person2"/>
<pre>
此处生成的servlet java文件为：
org.apache.jasper.runtime.JspRuntimeLibrary.introspecthelper(_jspx_page_context.findAttribute("person2"), "name", request.getParameter("name"), request, "name", false);
</pre>
</p>
<p>
<jsp:useBean id="person3" class="com.stono.servlet.bean.Person">
<jsp:setProperty name="person3" property="*" ></jsp:setProperty>
</jsp:useBean>
Name is <jsp:getProperty property="name" name="person3"/>
Age is <jsp:getProperty property="age" name="person3"/>
<pre>
此处生成的servlet java文件为：
org.apache.jasper.runtime.JspRuntimeLibrary.introspect(_jspx_page_context.findAttribute("person3"), request);
</pre>
</p>
</body>
</html>获取表单参数JSP的servlet：
/*
* Generated by the Jasper component of Apache Tomcat
* Version: Apache Tomcat/7.0.35
* Generated at: 2015-10-26 00:15:33 UTC
* Note: The last modified time of this file was set to
* the last modified time of the source file after
* generation to assist with modification tracking.
*/
package org.apache.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.util.*;
public final class index015_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {
private static final javax.servlet.jsp.JspFactory _jspxFactory =
javax.servlet.jsp.JspFactory.getDefaultFactory();
private static java.util.Map<java.lang.String,java.lang.Long> _jspx_dependants;
private javax.el.ExpressionFactory _el_expressionfactory;
private org.apache.tomcat.InstanceManager _jsp_instancemanager;
public java.util.Map<java.lang.String,java.lang.Long> getDependants() {
return _jspx_dependants;
}
public void _jspInit() {
_el_expressionfactory = _jspxFactory.getJspApplicationContext(getServletConfig().getServletContext()).getExpressionFactory();
_jsp_instancemanager = org.apache.jasper.runtime.InstanceManagerFactory.getInstanceManager(getServletConfig());
}
public void _jspDestroy() {
}
public void _jspService(final javax.servlet.http.HttpServletRequest request, final javax.servlet.http.HttpServletResponse response)
throws java.io.IOException, javax.servlet.ServletException {
final javax.servlet.jsp.PageContext pageContext;
javax.servlet.http.HttpSession session = null;
final javax.servlet.ServletContext application;
final javax.servlet.ServletConfig config;
javax.servlet.jsp.JspWriter out = null;
final java.lang.Object page = this;
javax.servlet.jsp.JspWriter _jspx_out = null;
javax.servlet.jsp.PageContext _jspx_page_context = null;
try {
response.setContentType("text/html;charset=UTF-8");
pageContext = _jspxFactory.getPageContext(this, request, response,
null, true, 8192, true);
_jspx_page_context = pageContext;
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;
out.write("\r\n");
out.write("\r\n");
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
out.write("\r\n");
out.write("<!DOCTYPE html>\r\n");
out.write("<html>\r\n");
out.write("<head>\r\n");
out.write("<meta charset=\"UTF-8\">\r\n");
out.write("<title>008index</title>\r\n");
out.write("</head>\r\n");
out.write("<body>\r\n");
out.write("\t<p>\r\n");
out.write("\t\t");
com.stono.servlet.bean.Person person = null;
person = (com.stono.servlet.bean.Person) _jspx_page_context.getAttribute("person", javax.servlet.jsp.PageContext.PAGE_SCOPE);
if (person == null){
person = new com.stono.servlet.bean.Person();
_jspx_page_context.setAttribute("person", person, javax.servlet.jsp.PageContext.PAGE_SCOPE);
out.write("\r\n");
out.write("\t\t\t");
org.apache.jasper.runtime.JspRuntimeLibrary.introspecthelper(_jspx_page_context.findAttribute("person"), "name", request.getParameter("userName1"), request, "userName1", false);
out.write("\r\n");
out.write("\t\t");
}
out.write("\r\n");
out.write("\t\tName is ");
out.write(org.apache.jasper.runtime.JspRuntimeLibrary.toString((((com.stono.servlet.bean.Person)_jspx_page_context.findAttribute("person")).getName())));
out.write("\r\n");
out.write("\t</p>\r\n");
out.write("\t<p>\r\n");
out.write("\t\t");
com.stono.servlet.bean.Person person2 = null;
person2 = (com.stono.servlet.bean.Person) _jspx_page_context.getAttribute("person2", javax.servlet.jsp.PageContext.PAGE_SCOPE);
if (person2 == null){
person2 = new com.stono.servlet.bean.Person();
_jspx_page_context.setAttribute("person2", person2, javax.servlet.jsp.PageContext.PAGE_SCOPE);
out.write("\r\n");
out.write("\t\t\t");
org.apache.jasper.runtime.JspRuntimeLibrary.introspecthelper(_jspx_page_context.findAttribute("person2"), "name", request.getParameter("name"), request, "name", false);
out.write("\r\n");
out.write("\t\t");
}
out.write("\r\n");
out.write("\t\tName is ");
out.write(org.apache.jasper.runtime.JspRuntimeLibrary.toString((((com.stono.servlet.bean.Person)_jspx_page_context.findAttribute("person2")).getName())));
out.write("\r\n");
out.write("\t</p>\r\n");
out.write("\t<p>\r\n");
out.write("\t\t");
com.stono.servlet.bean.Person person3 = null;
person3 = (com.stono.servlet.bean.Person) _jspx_page_context.getAttribute("person3", javax.servlet.jsp.PageContext.PAGE_SCOPE);
if (person3 == null){
person3 = new com.stono.servlet.bean.Person();
_jspx_page_context.setAttribute("person3", person3, javax.servlet.jsp.PageContext.PAGE_SCOPE);
out.write("\r\n");
out.write("\t\t\t");
org.apache.jasper.runtime.JspRuntimeLibrary.introspect(_jspx_page_context.findAttribute("person3"), request);
out.write("\r\n");
out.write("\t\t");
}
out.write("\r\n");
out.write("\t\tName is ");
out.write(org.apache.jasper.runtime.JspRuntimeLibrary.toString((((com.stono.servlet.bean.Person)_jspx_page_context.findAttribute("person3")).getName())));
out.write("\r\n");
out.write("\t\tAge is ");
out.write(org.apache.jasper.runtime.JspRuntimeLibrary.toString((((com.stono.servlet.bean.Person)_jspx_page_context.findAttribute("person3")).getAge())));
out.write("\r\n");
out.write("\t</p>\r\n");
out.write("\t\r\n");
out.write("</body>\r\n");
out.write("</html>\r\n");
} catch (java.lang.Throwable t) {
if (!(t instanceof javax.servlet.jsp.SkipPageException)){
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)
try { out.clearBuffer(); } catch (java.io.IOException e) {}
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
else throw new ServletException(t);
}
} finally {
_jspxFactory.releasePageContext(_jspx_page_context);
}
}
}POJO：
package com.stono.servlet.bean;
public class Person {
// 对外的属性名称还是name，
private String name2;
private Integer age;
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getName() {
return name2;
}
public void setName(String name) {
this.name2 = name;
}
}
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 
相关文章推荐
- Android 高级UI设计笔记06：仿微信图片选择器
- 10.14～10.25刷题（shui）记录
- UI基础篇-------UITabBarController的使用
- LeetCode_N-Queens II
- LeetCode_N-Queens
- requestWindowFeature()的应用
- Codeforces Round #327 (Div. 2)A. Wizards' Duel
- UIScrollView的常见属性
- SqlCommandBuilder如何实现批量更新
- 禁止UITextField 使用粘贴复制功能
- Gson之实例二-Gson注解和GsonBuilder
- iOS开发uibutton设置圆角形状
- 从头认识java-3.2 return break continue
- UUID的获取一句话
- request.getServletPath() 和 request.getPathInfo()
- Failed to read auto-increment value from storage
- 修改KVM虚机镜像中的文件的几种方法（Guestfish/Guestmount /virt-*tools）
- HDU 4675 GCD of Sequence （莫比乌斯反演）
- 使用UUID方法生成全球唯一标识
- lintcode 中等题：N Queens II N皇后问题 II