137 lines
3.4 KiB
Java
137 lines
3.4 KiB
Java
package com.ruoyi.common.utils;
|
|
|
|
import java.io.IOException;
|
|
import javax.servlet.http.HttpServletRequest;
|
|
import javax.servlet.http.HttpServletResponse;
|
|
import javax.servlet.http.HttpSession;
|
|
import org.springframework.web.context.request.RequestAttributes;
|
|
import org.springframework.web.context.request.RequestContextHolder;
|
|
import org.springframework.web.context.request.ServletRequestAttributes;
|
|
import com.ruoyi.common.core.text.Convert;
|
|
|
|
/**
|
|
* 客户端工具类
|
|
*
|
|
* @author ruoyi
|
|
*/
|
|
public class ServletUtils
|
|
{
|
|
/**
|
|
* 获取String参数
|
|
*/
|
|
public static String getParameter(String name)
|
|
{
|
|
return getRequest().getParameter(name);
|
|
}
|
|
|
|
/**
|
|
* 获取String参数
|
|
*/
|
|
public static String getParameter(String name, String defaultValue)
|
|
{
|
|
return Convert.toStr(getRequest().getParameter(name), defaultValue);
|
|
}
|
|
|
|
/**
|
|
* 获取Integer参数
|
|
*/
|
|
public static Integer getParameterToInt(String name)
|
|
{
|
|
return Convert.toInt(getRequest().getParameter(name));
|
|
}
|
|
|
|
/**
|
|
* 获取Integer参数
|
|
*/
|
|
public static Integer getParameterToInt(String name, Integer defaultValue)
|
|
{
|
|
return Convert.toInt(getRequest().getParameter(name), defaultValue);
|
|
}
|
|
|
|
/**
|
|
* 获取request
|
|
*/
|
|
public static HttpServletRequest getRequest()
|
|
{
|
|
return getRequestAttributes().getRequest();
|
|
}
|
|
|
|
/**
|
|
* 获取response
|
|
*/
|
|
public static HttpServletResponse getResponse()
|
|
{
|
|
return getRequestAttributes().getResponse();
|
|
}
|
|
|
|
/**
|
|
* 获取session
|
|
*/
|
|
public static HttpSession getSession()
|
|
{
|
|
return getRequest().getSession();
|
|
}
|
|
|
|
public static ServletRequestAttributes getRequestAttributes()
|
|
{
|
|
RequestAttributes attributes = RequestContextHolder.getRequestAttributes();
|
|
return (ServletRequestAttributes) attributes;
|
|
}
|
|
|
|
/**
|
|
* 将字符串渲染到客户端
|
|
*
|
|
* @param response 渲染对象
|
|
* @param string 待渲染的字符串
|
|
* @return null
|
|
*/
|
|
public static String renderString(HttpServletResponse response, String string)
|
|
{
|
|
try
|
|
{
|
|
response.setStatus(200);
|
|
response.setContentType("application/json");
|
|
response.setCharacterEncoding("utf-8");
|
|
response.getWriter().print(string);
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
e.printStackTrace();
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* 是否是Ajax异步请求
|
|
*
|
|
* @param request
|
|
*/
|
|
public static boolean isAjaxRequest(HttpServletRequest request)
|
|
{
|
|
String accept = request.getHeader("accept");
|
|
if (accept != null && accept.indexOf("application/json") != -1)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
String xRequestedWith = request.getHeader("X-Requested-With");
|
|
if (xRequestedWith != null && xRequestedWith.indexOf("XMLHttpRequest") != -1)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
String uri = request.getRequestURI();
|
|
if (StringUtils.inStringIgnoreCase(uri, ".json", ".xml"))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
String ajax = request.getParameter("__ajax");
|
|
if (StringUtils.inStringIgnoreCase(ajax, "json", "xml"))
|
|
{
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
}
|