工具类的封装

客户端的工具类


import io.swagger.models.auth.In;
import org.apache.commons.lang.StringUtils;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;/*** 客户端工具类**/
public class ServletUtils {public static ServletRequestAttributes getRequestAttributes(){RequestAttributes attributes = RequestContextHolder.getRequestAttributes();return (ServletRequestAttributes) attributes;}/*** 获取request*/public static HttpServletRequest getRequest(){return getRequestAttributes().getRequest();}/*** 获取session*/public static HttpSession getSession(){return getRequest().getSession();}/*** 获取response*/public static HttpServletResponse getResponse(){return getRequestAttributes().getResponse();}/*** 获取String参数*/public static String getParameter(String name){return getRequest().getParameter(name);}/*** 获取Integer参数*/public static Integer getParameterToInt(String name){return Integer.parseInt(getRequest().getParameter(name));}/*** 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;}
}

返回状态码封装

/*** 返回状态码**/
public class HttpStatus {/*** 操作成功*/public static final int SUCCESS = 200;/*** 对象创建成功*/public static final int CREATED = 201;/*** 请求已经被接受*/public static final int ACCEPTED = 202;/*** 操作已经执行成功,但是没有返回数据*/public static final int NO_CONTENT = 204;/*** 资源已被移除*/public static final int MOVED_PERM = 301;/*** 重定向*/public static final int SEE_OTHER = 303;/*** 资源没有被修改*/public static final int NOT_MODIFIED = 304;/*** 参数列表错误(缺少,格式不匹配)*/public static final int BAD_REQUEST = 400;/*** 未授权*/public static final int UNAUTHORIZED = 401;/*** 访问受限,授权过期*/public static final int FORBIDDEN = 403;/*** 资源,服务未找到*/public static final int NOT_FOUND = 404;/*** 不允许的http方法*/public static final int BAD_METHOD = 405;/*** 资源冲突,或者资源被锁*/public static final int CONFLICT = 409;/*** 不支持的数据,媒体类型*/public static final int UNSUPPORTED_TYPE = 415;/*** 系统内部错误*/public static final int ERROR = 500;/*** 接口未实现*/public static final int NOT_IMPLEMENTED = 501;
}


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