<p id="check"> <label>验证码：</label> <input class="vid" id="ValidateCode" name="ValidateCode" type="text" value="" onblur="checkValidateCode()"/> <img id="checkcodeimg" src="<%=path %>/image.jsp" style="margin-left:10px;" width="74px" height="28px" onclick="this.src=‘<%=path %>/image.jsp?date=‘+new Date();"/> <span id="codeSpan"></span> </p>
image.jsp
1 <%@ page contentType="image/jpeg" import="java.awt.*, java.awt.image.*,java.util.*,javax.imageio.*"%>
2 <%!Color getRandColor(int fc, int bc) {
3 Random random = new Random();
4 if (fc > 255)
5 fc = 255;
6 if (bc > 255)
7 bc = 255;
8 int r = fc + random.nextInt(bc - fc);
9 int g = fc + random.nextInt(bc - fc);
10 int b = fc + random.nextInt(bc - fc);
11 return new Color(r, g, b);
12 }%>
13 <%
14 out.clear();//????resin???????tomacat??????
15 out = pageContext.pushBody();
16 response.setHeader("Pragma", "No-cache");
17 response.setHeader("Cache-Control", "no-cache");
18 response.setDateHeader("Expires", 0);
19
20 int width = 60, height = 20;
21 BufferedImage image = new BufferedImage(width, height,
22 BufferedImage.TYPE_INT_RGB);
23
24 Graphics g = image.getGraphics();
25 Random random = new Random();
26
27 g.setColor(getRandColor(200, 250));
28 g.fillRect(0, 0, width, height);
29
30 g.setFont(new Font("Times New Roman", Font.PLAIN, 18));
31
32 g.setColor(getRandColor(160, 200));
33 for (int i = 0; i < 155; i++) {
34 int x = random.nextInt(width);
35 int y = random.nextInt(height);
36 int xl = random.nextInt(12);
37 int yl = random.nextInt(12);
38 g.drawLine(x, y, x + xl, y + yl);
39 }
40
41 String sRand = "";
42 for (int i = 0; i < 4; i++) {
43 String rand = String.valueOf(random.nextInt(10));
44 sRand += rand;
45
46 g.setColor(new Color(20 + random.nextInt(110), 20 + random.nextInt(110), 20 + random.nextInt(110)));
47 g.drawString(rand, 13 * i + 6, 16);
48 }
49 // ??????SESSION
50 session.setAttribute("rand", sRand);
51 g.dispose();
52
53 ImageIO.write(image, "JPEG", response.getOutputStream());
54 %>
实现jsp
1 var xmlHttpRequest;
2 //XmlHttpRequest对象
3 function createXmlHttpRequest(){
4 if(window.ActiveXObject){ //如果是IE
5 return new ActiveXObject("Microsoft.XMLHTTP");
6 }else if(window.XMLHttpRequest){ //非IE浏览器
7 return new XMLHttpRequest();
8 }
9 }
10 function checkValidateCode(){
11 code = document.getElementById("ValidateCode").value.trim();
12 var url = "user_validateCodeCheck.do?validateCode="+code;
13 xmlHttpRequest = createXmlHttpRequest();
14 xmlHttpRequest.onreadystatechange = HuiDiaoFun;
15 xmlHttpRequest.open("post",url,true);
16 xmlHttpRequest.send(null);
17 }
18
19 //回调函数
20 function HuiDiaoFun(){
21 if(xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 200){
22 var resp = xmlHttpRequest.responseText;
23 if (resp == "error") {
24 document.getElementById("codeSpan").innerHTML = "验证码错误！";
25 document.getElementById("codeSpan").style.color = "#FF0000";
26 }else if(resp == "ok"){
27 document.getElementById("codeSpan").innerHTML = "";
28 }
29 }
30 }
1 public class UserAction extends BaseAction{
2
3
4 private String validateCode;
5
6
7 public void validateCodeCheck(){
8 String code = (String)getHttpSession().getAttribute("rand");
9 System.out.println(code);
10 if(StringUtils.isNoneEmpty(validateCode) && validateCode.equals(code)){
11 ResponseUtil.writeUTF(getHttpResponse(), "ok");
12 }else{
13 ResponseUtil.writeUTF(getHttpResponse(), "error");
14 }
15 }
16
17 }
18
19
20
21
22 import java.io.IOException;
23 import java.io.UnsupportedEncodingException;
24 import java.util.Enumeration;
25 import java.util.HashMap;
26 import java.util.List;
27 import java.util.Map;
28
29 import javax.servlet.ServletContext;
30 import javax.servlet.http.HttpServletRequest;
31 import javax.servlet.http.HttpServletResponse;
32 import javax.servlet.http.HttpSession;
33 import javax.servlet.jsp.PageContext;
34
35 import org.apache.struts2.ServletActionContext;
36 import org.springframework.web.context.support.WebApplicationContextUtils;
37
38 import com.opensymphony.xwork2.ActionSupport;
39
40
41
42 /**
43 * action基类，提供共用方法
44 *
45 *
46 */
47 public class BaseAction extends ActionSupport {
48
49 public UnitService baseUnitService;
50 public RoleService baseRoleService;
51 public ConfigService baseConfigService;
52 public ChannelService baseChannelService;
53 public InfoService baseInfoService;
54 public int pageSize=10;
55 public int currPage=1;
56 public int totalCount=0;
57 public String pageStr;
58 public String pageFuncId;
59 public String showMessage;
60 public String forwardUrl="";
61 public int forwardSeconds=0;
62 public String getForwardUrl() {
63 return forwardUrl;
64 }
65 public void setForwardUrl(String forwardUrl) {
66 this.forwardUrl = forwardUrl;
67 }
68 public int getForwardSeconds() {
69 return forwardSeconds;
70 }
71 public void setForwardSeconds(int forwardSeconds) {
72 this.forwardSeconds = forwardSeconds;
73 }
74 public int getPageSize() {
75 return pageSize;
76 }
77 public void setPageSize(int pageSize) {
78 this.pageSize = pageSize;
79 }
80 public int getCurrPage() {
81 return currPage;
82 }
83 public void setCurrPage(int currPage) {
84 this.currPage = currPage;
85 }
86 public HttpSession getHttpSession(){
87 return ServletActionContext.getRequest().getSession();
88 }
89 public HttpServletRequest getHttpRequest(){
90 return ServletActionContext.getRequest();
91 }
92 public HttpServletResponse getHttpResponse(){
93 return ServletActionContext.getResponse();
94 }
95 public PageContext getPageContext(){
96 return ServletActionContext.getPageContext();
97 }
98 public ServletContext getServletContext(){
99 return ServletActionContext.getServletContext();
100 }
101 public Map<String, Object> getApplication(){
102 return ServletActionContext.getContext().getApplication();
103 }
104 public String getBasePath(){
105 String path = getHttpRequest().getContextPath();
106 String basePath = getHttpRequest().getScheme()+"://"+getHttpRequest().getServerName()+":"+getHttpRequest().getServerPort()+path+"/";
107 return basePath;
108 }
109
110
111 /**
112 * 获取配置
113 * @return
114 */
115 public Map<String, Object> getConfig(){
116 if (getApplication().get("config")!=null) {
117 return (Map<String, Object>)getApplication().get("config");
118 }else {
119 //重新生成
120 return setConfig();
121 }
122 }
123 /**
124 * 获取配置值
125 * @return
126 */
127 public String getConfigVal(String name){
128 Map<String, Object> config=getConfig();
129 if (config!=null && config.get(name)!=null) {
130 return config.get(name).toString();
131 }
132 return "";
133 }
134 /**
135 * 设置配置
136 * @return
137 */
138 public Map<String, Object> setConfig(){
139 baseConfigService = (ConfigService) getBean("configService");
140 List<Config> configList=baseConfigService.find();
141 Map<String, Object> config=new HashMap<String, Object>();
142 if (configList!=null && configList.size()>0) {
143 for (int i = 0; i < configList.size(); i++) {
144 config.put(configList.get(i).getCode(), configList.get(i).getConfigvalue());
145 }
146 }
147 getApplication().put("config", config);
148 return config;
149 }
150 public void write(String content,String charset){
151 getHttpResponse().setCharacterEncoding(charset);
152 getHttpResponse().setContentType("text/html;charset="+charset);
153 try {
154 getHttpResponse().getWriter().print(content);
155 } catch (IOException e) {
156 e.printStackTrace();
157 }
158 }
159 /**
160 * 判断是否为admin登录
161 */
162 public boolean isAdminLogin(){
163 return "admin".equals(getLoginName());
164 }
165 /**
166 * 判断是否为站点总管理员
167 */
168 public boolean isSiteAdmin(){
169 if (getHttpSession().getAttribute("siteAdmin")!=null) {
170 return (Boolean)getHttpSession().getAttribute("siteAdmin");
171 }
172 return false;
173 }
174 /**
175 * 获取当前管理站点
176 * @return
177 */
178 public Site getManageSite(){
179 if (getHttpSession().getAttribute("manageSite")!=null) {
180 //获取当前管理站点
181 return (Site)getHttpSession().getAttribute("manageSite");
182 }
183 return null;
184 }
185 /**
186 * 获取session中的当前登录用户名
187 * @return
188 */
189 public String getLoginName(){
190 if (getLoginAdmin()!=null) {
191 return getLoginAdmin().getLoginname();
192 }
193 return "";
194 }
195 /**
196 * 获取session中的当前登录用户
197 * @return
198 */
199 public Users getLoginAdmin(){
200 if (getHttpSession().getAttribute("loginAdmin")!=null) {
201 return (Users)getHttpSession().getAttribute("loginAdmin");
202 }
203 return null;
204 }
205 /**
206 * 获取session中的当前登录会员
207 * @return
208 */
209 public Member getLoginMember(){
210 if (getHttpSession().getAttribute("loginMember")!=null) {
211 return (Member)getHttpSession().getAttribute("loginMember");
212 }
213 return null;
214 }
215 /**
216 * 获取session中的当前登录会员组
217 * @return
218 */
219 public Membergroup getLoginMembergroup(){
220 if (getHttpSession().getAttribute("loginMembergroup")!=null) {
221 return (Membergroup)getHttpSession().getAttribute("loginMembergroup");
222 }
223 return null;
224 }
225 /**
226 * 获取session中的当前会员登录用户名
227 * @return
228 */
229 public String getLoginMemberName(){
230 if (getLoginMember()!=null) {
231 return getLoginMember().getLoginname();
232 }
233 return "";
234 }
235
236 /**
237 * 获取登录用户所属单位
238 * @return
239 */
240 public List<Unit> getLoginUnits(){
241 //先判断session是否存在
242 HttpSession session=getHttpSession();
243 if (session.getAttribute("loginUnits")!=null) {
244 return (List<Unit>)session.getAttribute("loginUnits");
245 }else {
246 //不存在则重新提取
247 baseUnitService = (UnitService) getBean("unitService");
248 List<Unit> list = baseUnitService.findByUser(getLoginAdmin().getId());
249 session.setAttribute("loginUnits", list);
250 return list;
251 }
252 }
253 /**
254 * 获取登录用户所属单位组成的sql语句
255 * 例:‘‘,‘‘,‘‘
256 * @return
257 */
258 public String getLoginUnitIdsSql(){
259 List<Unit> list=getLoginUnits();
260 StringBuilder sb=new StringBuilder();
261 if (list!=null && list.size()>0) {
262 for (int i = 0; i < list.size(); i++) {
263 if (i>0) {
264 sb.append(",");
265 }
266 sb.append("‘"+list.get(i).getId()+"‘");
267 }
268 }
269 return sb.toString();
270 }
271 /**
272 * 获取登录用户所属角色
273 * @return
274 */
275 public List<Roles> getLoginRoles(){
276 //先判断session是否存在
277 HttpSession session=getHttpSession();
278 if (session.getAttribute("loginRoles")!=null) {
279 return (List<Roles>)session.getAttribute("loginRoles");
280 }else {
281 //不存在则重新提取
282 baseRoleService = (RoleService) getBean("roleService");
283 List<Roles> list = baseRoleService.findByUser(getLoginAdmin().getId());
284 session.setAttribute("loginRoles", list);
285 return list;
286 }
287 }
288 /**
289 * 获取登录用户所属角色组成的sql语句
290 * 例:‘‘,‘‘,‘‘
291 * @return
292 */
293 public String getLoginRoleIdsSql(){
294 List<Roles> list=getLoginRoles();
295 StringBuilder sb=new StringBuilder();
296 if (list!=null && list.size()>0) {
297 for (int i = 0; i < list.size(); i++) {
298 if (i>0) {
299 sb.append(",");
300 }
301 sb.append("‘"+list.get(i).getId()+"‘");
302 }
303 }
304 return sb.toString();
305 }
306 /**
307 * 返回到通用信息提示页面
308 * @param msg
309 * @param url
310 * @param seconds
311 * @return
312 */
313 public String showMessage(String showMessage,String forwardUrl,int forwardSeconds){
314 this.showMessage=showMessage;
315 this.forwardUrl=forwardUrl;
316 this.forwardSeconds=forwardSeconds;
317 return "showMessage";
318 }
319 /**
320 * 设置静态化参数
321 * @param data
322 * @throws UnsupportedEncodingException
323 */
324 public void setData(Map<String,Object> data,Site site) throws UnsupportedEncodingException{
325 //传递site参数
326 data.put("site", site);
327 data.put("contextPath", getContextPath());
328 data.put("contextPathNo", getContextPathNo());
329 data.put("request_remoteAddr", getHttpRequest().getRemoteAddr());
330 //获取参数并放入data
331 Enumeration<String> paramNames=getHttpRequest().getParameterNames();
332 if (paramNames!=null && paramNames.hasMoreElements()) {
333 String name;
334 while (paramNames.hasMoreElements()) {
335 name=paramNames.nextElement();
336 if (name!=null &&
337 !name.equals("site") &&
338 !name.equals("contextPath")&&
339 !name.equals("currChannelid")&&
340 !name.equals("currInfoid")) {
341 if(name.equals("key")){
342 String key = new String(getHttpRequest().getParameter(name).getBytes(),"UTF-8");
343 data.put(name, key);
344 }else{
345 data.put(name, getHttpRequest().getParameter(name));
346 }
347 }
348 }
349 }
350 //如果有currChannelid参数则传递currChannel对象
351 if (getHttpRequest().getParameter("currChannelid")!=null && getHttpRequest().getParameter("currChannelid").trim().length()>0) {
352 baseChannelService = (ChannelService) getBean("channelService");
353 data.put("currChannel",baseChannelService.findById(getHttpRequest().getParameter("currChannelid")));
354 }
355 //如果有currInfoid参数则传递currInfo对象
356 if (getHttpRequest().getParameter("currInfoid")!=null && getHttpRequest().getParameter("currInfoid").trim().length()>0) {
357 baseInfoService = (InfoService) getBean("infoService");
358 data.put("currInfo",baseInfoService.findById(getHttpRequest().getParameter("currInfoid")));
359 }
360 //获取seesion中存放的变量
361 Enumeration<String> sessionNames=getHttpSession().getAttributeNames();
362 if (sessionNames!=null && sessionNames.hasMoreElements()) {
363 String name;
364 while (sessionNames.hasMoreElements()) {
365 name=sessionNames.nextElement();
366 if (name!=null) {
367 //session变量名称改为session_变量名，避免重名
368 data.put("session_"+name, getHttpSession().getAttribute(name));
369 }
370 }
371 }
372 }
373 public String getContextPath(){
374 return getHttpRequest().getContextPath()+"/";
375 }
376 public String getContextPathNo(){
377 return getHttpRequest().getContextPath()+"/";
378 }
379 public String getPageStr() {
380 return pageStr;
381 }
382 public void setPageStr(String pageStr) {
383 this.pageStr = pageStr;
384 }
385 public int getTotalCount() {
386 return totalCount;
387 }
388 public void setTotalCount(int totalCount) {
389 this.totalCount = totalCount;
390 }
391 public String getPageFuncId() {
392 return pageFuncId;
393 }
394 public void setPageFuncId(String pageFuncId) {
395 this.pageFuncId = pageFuncId;
396 }
397 public UnitService getBaseUnitService() {
398 return baseUnitService;
399 }
400 public void setBaseUnitService(UnitService baseUnitService) {
401 this.baseUnitService = baseUnitService;
402 }
403 public RoleService getBaseRoleService() {
404 return baseRoleService;
405 }
406 public void setBaseRoleService(RoleService baseRoleService) {
407 this.baseRoleService = baseRoleService;
408 }
409 public ConfigService getBaseConfigService() {
410 return baseConfigService;
411 }
412 public void setBaseConfigService(ConfigService baseConfigService) {
413 this.baseConfigService = baseConfigService;
414 }
415 public String getShowMessage() {
416 return showMessage;
417 }
418 public void setShowMessage(String showMessage) {
419 this.showMessage = showMessage;
420 }
421
422 public ChannelService getBaseChannelService() {
423 return baseChannelService;
424 }
425 public void setBaseChannelService(ChannelService baseChannelService) {
426 this.baseChannelService = baseChannelService;
427 }
428 public InfoService getBaseInfoService() {
429 return baseInfoService;
430 }
431 public void setBaseInfoService(InfoService baseInfoService) {
432 this.baseInfoService = baseInfoService;
433 }
434
435 public Object getBean(String bean) {
436 return WebApplicationContextUtils.getWebApplicationContext(
437 ServletActionContext.getRequest().getSession().getServletContext()).getBean(bean);
438 }
439 }
时间： 2024-10-18 02:23:20