需求：获取HTML的请求参数
类似：
实现思路：
1、利用过滤器拦截所有HTML请求
2、利用ModelAndView把参数保存起来
3、在HTML页面使用${key}把参数获取到
一、利用过滤器拦截所有HTML请求
web.xml配置：
<!-- html -->
<filter>
<filter-name>html</filter-name>
<filter-class>core.filter.HTML</filter-class>
</filter>
<filter-mapping>
<filter-name>html</filter-name>
<url-pattern>*.html</url-pattern>
</filter-mapping>
过滤器：
package core.filter;
import java.io.IOException;
import java.util.Enumeration;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* 过滤所有HTML请求
*
*/
public class HTML implements Filter {
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
req.setCharacterEncoding("UTF-8");
res.setCharacterEncoding("UTF-8");
res.setHeader( "Access-Control-Allow-Origin", "*" );
String uri = backslashToSingle( req.getRequestURI() );
String context = req.getContextPath();
Enumeration enu = request.getParameterNames();
StringBuffer params = new StringBuffer();
while(enu.hasMoreElements()){
String paraName = (String)enu.nextElement();
params.append("&"+paraName+"="+request.getParameter(paraName));
}
//重定向
if(uri.indexOf(".") != -1) {
res.sendRedirect(context + "/html/go?pagepath=" + uri.substring(context.length()+1,uri.indexOf(".")) + params);
return;
}
chain.doFilter(req, res);
}
@Override
public void init(FilterConfig arg0) throws ServletException {
}
public void destroy() {
}
/**
* 将路径中的连续斜杠转成单个的
* @param strURL
* @return
*/
public static String backslashToSingle(String strURL){
while ( strURL.indexOf( "//" ) != -1 ) {
strURL = strURL.replace( "//", "/" );
}
if( strURL.indexOf( ":" ) != -1 ) {
strURL = strURL.replace( ":", ":/" );
}
return strURL;
}
}
HTML的controller类：
package module.api.controller;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import core.common.springmvc.BasicController;
/**
* 往html界面中注入常用el属性
*/
@Controller
@RequestMapping("/html")
public class HTMLController extends BasicController {
@RequestMapping("/go")
@ResponseBody
public ModelAndView go(HttpServletRequest request, String pagepath, String parameter) {
ModelAndView modelAndView = new ModelAndView();
String rootPath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort();
String basePath = rootPath + request.getContextPath() + "/";
rootPath += "/";
String title = request.getParameter("name");
modelAndView.setViewName(pagepath);
modelAndView.addObject("rootPath", rootPath);
modelAndView.addObject("basePath", basePath);
// modelAndView.addObject("basePath", "http://183.203.223.224:82/taiyuan/");
Object object = null;
try {
object = JSON.parse(parameter);
if (!(object instanceof JSONObject)) {
parameter = "{}";
}
} catch (Exception e) {
parameter = "{}";
}
modelAndView.addObject("parameter", parameter);
modelAndView.addObject("title", title == null ? "" : title);
return modelAndView;
}
@RequestMapping("/readdata/go")
@ResponseBody
public ModelAndView readDataGo(HttpServletRequest request, String pagepath, String parameter, String interfacepath,
String interfaceparameter) {
ModelAndView modelAndView = new ModelAndView();
String rootPath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort();
String basePath = rootPath + request.getContextPath() + "/";
rootPath += "/";
String title = request.getParameter("name");
modelAndView.setViewName(pagepath);
modelAndView.addObject("rootPath", rootPath);
modelAndView.addObject("basePath", basePath);
// modelAndView.addObject("basePath", "http://183.203.223.224:82/taiyuan/");
Object object = null;
try {
object = JSON.parse(parameter);
if (!(object instanceof JSONObject)) {
parameter = "{}";
}
} catch (Exception e) {
parameter = "{}";
}
modelAndView.addObject("parameter", parameter);
modelAndView.addObject("title", title == null ? "" : title);
return modelAndView;
}
}
父类BasicController：
package core.common.springmvc;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import util.ResponseUtil;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
public abstract class BasicController {
protected Map<String, Object> result = new HashMap<String, Object>();
protected boolean flag = false;
protected String msg = "";
protected String businessCode="";
public String basePath() {
HttpServletRequest request = request();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + request.getContextPath();
return basePath;
}
public String rootPath() {
HttpServletRequest request = request();
String rootPath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort();
return rootPath;
}
public String cdnPath() {
HttpServletRequest request = request();
String cdnPath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + "/cdn";
return cdnPath;
}
public void write(Integer total,List list,HttpServletResponse response) throws Exception{
JSONObject result = new JSONObject();
JSONArray jsonArray = new JSONArray( list );
result.put("rows", jsonArray);
result.put("total", total);
ResponseUtil.write(response, result);
}
@InitBinder
public void initBinder(WebDataBinder binder) {
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
dateFormat.setLenient(true);
binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, true));
}
public String findSessionId() {
HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();
String contextPath = request.getContextPath();
return contextPath+request.getSession().getId();
}
public HttpServletRequest request() {
HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();
return request;
}
}
二、利用ModelAndView把参数保存起来
三、在HTML页面使用${key}把参数获取到
var basePath = '${basePath}';
var rootPath = '${rootPath}';
var parameter = ${ parameter };
实现获取参数：
参考文章：
https://www.cnblogs.com/Sunnor/p/6130380.html
https://blog.csdn.net/ITBigGod/article/details/79685610
https://blog.csdn.net/qq_29569183/article/details/79282673
https://blog.csdn.net/qq_39592670/article/details/82466907
https://blog.csdn.net/qq_41995919/article/details/102944960