基於SSM框架許可權系統的開發
阿新 • • 發佈：2019-02-08
有bug請在評論區留言
資料庫完成，開始web部分
admin.jsp
最後在需要引用的介面引用
這是個十分簡單的許可權實現，後端採用SSM框架，前段展示層使用ztree（ztree官網），實現控制則使用jsp自定義的判斷標籤；
第一步：新建power資料庫。
使用者表user，權利表power，使用者-權利關係表userPower,
/* Navicat MySQL Data Transfer Source Server : 123 Source Server Version : 50610 Source Host : 127.0.0.1:3306 Source Database : power Target Server Type : MYSQL Target Server Version : 50610 File Encoding : 65001 Date: 2018-01-15 21:07:24 */ SET FOREIGN_KEY_CHECKS=0; -- ---------------------------- -- Table structure for power -- ---------------------------- DROP TABLE IF EXISTS `power`; CREATE TABLE `power` ( `pId` int(4) NOT NULL AUTO_INCREMENT, `pName` varchar(25) DEFAULT NULL, PRIMARY KEY (`pId`) ) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8; -- ---------------------------- -- Records of power -- ---------------------------- INSERT INTO `power` VALUES ('1', '吃'); INSERT INTO `power` VALUES ('2', '吃飯'); INSERT INTO `power` VALUES ('3', '吃麵條'); INSERT INTO `power` VALUES ('4', '吃零食'); INSERT INTO `power` VALUES ('5', '喝'); INSERT INTO `power` VALUES ('6', '喝芬達'); INSERT INTO `power` VALUES ('7', '喝可樂'); INSERT INTO `power` VALUES ('8', '嘴'); INSERT INTO `power` VALUES ('9', '說話'); INSERT INTO `power` VALUES ('10', '噴人'); -- ---------------------------- -- Table structure for user -- ---------------------------- DROP TABLE IF EXISTS `user`; CREATE TABLE `user` ( `uId` int(4) NOT NULL AUTO_INCREMENT, `uName` varchar(10) DEFAULT NULL, PRIMARY KEY (`uId`) ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8; -- ---------------------------- -- Records of user -- ---------------------------- INSERT INTO `user` VALUES ('1', 'admin'); INSERT INTO `user` VALUES ('2', 'tom'); INSERT INTO `user` VALUES ('3', 'jack'); -- ---------------------------- -- Table structure for userpower -- ---------------------------- DROP TABLE IF EXISTS `userpower`; CREATE TABLE `userpower` ( `uPId` int(4) NOT NULL AUTO_INCREMENT, `uPUId` int(11) DEFAULT NULL, `uPPId` int(11) DEFAULT NULL, PRIMARY KEY (`uPId`) ) ENGINE=InnoDB AUTO_INCREMENT=17 DEFAULT CHARSET=utf8; -- ---------------------------- -- Records of userpower -- ---------------------------- INSERT INTO `userpower` VALUES ('1', '1', '1'); INSERT INTO `userpower` VALUES ('12', '2', '1'); INSERT INTO `userpower` VALUES ('13', '2', '2'); INSERT INTO `userpower` VALUES ('14', '2', '3'); INSERT INTO `userpower` VALUES ('15', '2', '4'); INSERT INTO `userpower` VALUES ('16', '2', '5');
資料庫完成，開始web部分
第二步：新建maven專案
新增專案相關jar包，這是專案的架構，biaoqian包是存放jsp自定義標籤的處理類
程式碼貼出關鍵部分
controller層程式碼：
兩個service的方法：package cn.controller; import java.util.List; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import org.springframework.stereotype.Controller; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import com.alibaba.fastjson.JSONArray; import cn.pojo.Power; import cn.pojo.User; import cn.pojo.UserPower; import cn.service.UserPowerService; import cn.service.UserService; @Controller @RequestMapping("power") public class PowerController { @Resource private UserService userService; @Resource private UserPowerService userPowerService; /** * 登入 * * @param request * @param u * @param model * @return */ @RequestMapping("login") public String login(HttpServletRequest request, User u, Model model) { User user = userService.login(u); if (user == null) { return "redirect:/login.jsp"; } HttpSession session = request.getSession(); session.setAttribute("USER_LOGIN", user); if (user.getuName().equals("admin")) { List<User> list_user = userService.getAllUser(); session.setAttribute("list_user", list_user); return "admin"; } return "welcome"; } /** * 非同步方法，根據uid獲取相應許可權list * * @param uId * @return */ @RequestMapping("getPowerByUId") @ResponseBody public String getPowerByUId(@RequestParam("uId") String uId) { List<UserPower> i = userPowerService.getPowerByUId(Integer.parseInt(uId)); return JSONArray.toJSONString(i); } @RequestMapping("updatePower") public String updatePower(@RequestParam("uId") String uId, @RequestParam("pow") String pow) { userPowerService.deletePower(Integer.parseInt(uId));// 增加前先刪除具有的許可權 String[] p = pow.split(","); UserPower up = new UserPower(); for (String power : p) { if (power.length() > 0) { up.setuPUId(Integer.parseInt(uId)); up.setuPPId(Integer.parseInt(power)); userPowerService.addPower(up);// 增加許可權 } } return "admin"; } }
package cn.service; import java.util.List; import org.apache.ibatis.annotations.Param; import cn.pojo.UserPower; public interface UserPowerService { // 根據uid查出具有的許可權 List<UserPower> getPowerByUId(Integer uId); // 增加許可權 int addPower(UserPower userPower); // 刪除許可權 int deletePower(Integer uId); } package cn.service; import java.util.List; import cn.pojo.User; public interface UserService { // 登入 User login(User u); // 獲得所有使用者 List<User> getAllUser(); }
jsp頁面有3個，login.jsp welcome.jsp admin.jsp，這裡的login.jsp就不用說了吧，一個輸入框輸入姓名後，去資料庫查是否存在這個人，很簡單；
welcome.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib uri="/WEB-INF/powertag.tld" prefix="yu" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'welcome.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
我是${USER_LOGIN.uName },<br/>
我具有:<hr/>
<p style="color:red;">
<yu:power power="吃">吃，<br/></yu:power>
<yu:power power="吃飯">吃飯，<br/></yu:power>
<yu:power power="吃麵條">吃麵條，<br/></yu:power>
<yu:power power="吃零食">吃零食，<br/></yu:power>
<yu:power power="喝">喝，<br/></yu:power>
<yu:power power="喝芬達">喝芬達，<br/></yu:power>
<yu:power power="喝可樂">喝可樂，<br/></yu:power>
<yu:power power="嘴">嘴，<br/></yu:power>
<yu:power power="說話">說話，<br/></yu:power>
<yu:power power="噴人">噴人，<br/></yu:power>
</p>
<hr/>
功能的
</body>
</html>
admin.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'admin.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<p>你想修改誰的許可權：</p>
<c:forEach var="list_user" items="${list_user }">
<c:if test="${list_user.uName!='admin' }">
<input type="radio" name="uName" value="${list_user.uId }" />${list_user.uName }
</c:if>
</c:forEach>
<div id="ztree" style="display:none;">
<ul id="baseTree" class="ztree" style="width:260px; overflow:auto;"></ul>
<button id="btn">提交</button>
</div>
</body>
</html>
<link rel="stylesheet" type="text/css"
href="ztree/css/zTreeStyle/zTreeStyle.css">
<script type="text/javascript" src="js/jquery-1.8.0.js"></script>
<script type="text/javascript" src="ztree/jquery.ztree.all-3.5.js"></script>
<script>
//$("input[name=uName]:checked")
//顯示已有許可權
$("input[name=uName]").click(function() {
var uId = $("input[name=uName]:checked").val();
$("#ztree").css("display", "block")
var treeObj = $.fn.zTree.getZTreeObj("baseTree");
treeObj.checkAllNodes(false); //所有節點取消選中
treeObj.expandAll(false); //所有節點關閉
$.post("power/getPowerByUId?uId=" + uId, function(data) {
var v = JSON.parse(data);
for (var i = 0; i < v.length; i++) {
var node = treeObj.getNodeByParam("value", v[i].uPPId, null);
treeObj.expandNode(node, true, false); //指定選中ID節點展開
treeObj.checkNode(node); //指定節點選中
}
}, "text")
})
//修改許可權
$("#btn").click(function() {
var pow = "";
var uId = $("input[name=uName]:checked").val()
var treeObj = $.fn.zTree.getZTreeObj("baseTree");
var nodes = treeObj.getCheckedNodes(true);
for (var i = 0; i < nodes.length; i++) {
pow = pow + "," + nodes[i].value;
}
location.href = "power/updatePower?uId="+uId+"&pow="+pow;
})
//設定ztree
var setting = {
check : {
chkboxType : {
"Y" : "ps",
"N" : "s"
}, //勾選checkbox對於父子節點的關聯關係,取消勾選時不關聯父
chkStyle : "checkbox",
enable : true //是否複選框
},
data : {
simpleData : {
enable : true
}
}
};
var zNodes = [ {
id : 1,
name : "吃",
value : "1"
}, {
id : 11,
pId : 1,
name : "吃飯",
value : "2"
}, {
id : 12,
pId : 1,
name : "吃麵條",
value : "3"
}, {
id : 13,
pId : 1,
name : "吃零食",
value : "4"
}, {
id : 2,
name : "喝",
value : "5"
}, {
id : 21,
pId : 2,
name : "喝芬達",
value : "6"
}, {
id : 21,
pId : 2,
name : "喝可樂",
value : "7"
}, {
id : 3,
name : "嘴",
value : "8"
}, {
id : 31,
pId : 3,
name : "說話",
value : "9"
}, {
id : 32,
pId : 3,
name : "噴人",
value : "10"
}
]
$.fn.zTree.init($("#baseTree"), setting, zNodes);
</script>下面開始自定義一個jsp判斷標籤，簡單的哦
jsp標籤建立分3步，先建立處理類，在編寫tid檔案，最後引用。
處理類：
package cn.biaoqian;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.BodyTagSupport;
import javax.servlet.jsp.tagext.TagSupport;
import cn.pojo.Power;
import cn.pojo.User;
/**
* @author Yu
*
*/
public class Yu extends TagSupport {
private PageContext pageContext;
private String power;
// 設定PageContext物件
public void setPageContext(PageContext pageContext) {
this.pageContext = pageContext;
}
public void setPower(String power) {
this.power = power;
}
/**
* 標籤開始處理..呼叫的方法
*
*/
@Override
public int doStartTag() throws JspException {
try {
HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();
HttpSession session = request.getSession();
User u = (User) session.getAttribute("USER_LOGIN");
System.out.println(u);
List<Power> power = u.getPower();
for (int i = 0; i < power.size(); i++) {
if (power.get(i).getpName().equals(this.power)) {
// 允許訪問標籤body
return BodyTagSupport.EVAL_BODY_INCLUDE;// 返回此則執行標籤body中內容，SKIP_BODY則不執行
}
}
return BodyTagSupport.SKIP_BODY;
} catch (Exception e) {
return BodyTagSupport.SKIP_BODY;
}
}
/**
*
* 標籤處理結束的呼叫的方法
*/
@Override
public int doEndTag() throws JspException {
return super.doEndTag();
}
/**
*
* 釋放資源
*/
@Override
public void release() {
super.release();
}
}<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<!-- 標籤描述TLD檔案 -->
<taglib>
<tlib-version>1.1</tlib-version>
<jsp-version>1.2</jsp-version>
<!-- 預設字首名 -->
<short-name>yu</short-name>
<uri>http://www.mytaglib.com/taglib</uri>
<display-name>MyDateTaglib</display-name>
<description>My date taglib!</description>
<tag>
<name>power</name>
<tag-class>cn.biaoqian.Yu</tag-class>
<attribute>
<name>power</name>
<!-- 屬性是否必須 -->
<required>true</required>
<!-- 屬性是否支援小指令碼 EL表示式 -->
<rtexprvalue>true</rtexprvalue>
</attribute>
</tag>
</taglib>
最後在需要引用的介面引用
<%@ taglib uri="/WEB-INF/powertag.tld" prefix="yu" %>
普通成員效果圖：
admin效果圖：
程式碼完成！
結束語：給與沒有許可權設計思路小夥伴的一個方法，僅作為案例（樣式什麼的隨便啦）。
轉載請註明出處！