export interface IHMInterceptor {
    handle(info: HMInterceptorInfo): HMInterceptorAction;
}
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export interface HMInterceptorInfo {
    srcName: string;
    targetName: string;
    isSrc?: boolean;
    type: HMActionType;
    routerPathInfo: HMRouterPathInfo;
    routerPathCallback?: HMRouterPathCallback;
    context: UIContext;
}

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@Observed
export class LoginModel {
  Name: string = "";
  Password: string = "";

  constructor(name: string, password: string) {
    this.Name = name;
    this.Password = password;
  }
}
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import { LoginModel } from "../Models/LoginModel";

export class User {
  private static LoginUser?: LoginModel

  /**
   * 登录
   * @param username
   * @param password
   * @returns
   */
  public static Login(username: string, password: string): string {
    if (username == undefined || username == "" || password == undefined || password == "") {
      return "登录失败";
    }
    User.LoginUser = new LoginModel(username, password);
    return "登录成功";
  }

  /**
   *登出
   */
  public static Logout() {
    User.LoginUser = undefined;
  }

  /**
   * 是否登录
   * @returns
   */
  public static IsLogin(): boolean {
    return User.LoginUser != undefined;
  }
}
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import { HMInterceptorInfo, HMRouter, HMRouterMgr } from "@hadss/hmrouter";
import { User } from "../../Common/User";

@HMRouter({ pageUrl: "LoginPage" })
@Component
export struct LoginPage {
  @State UserName: string = "";
  @State Password: string = "";
  TargetPath?: string;
  PathParam: ESObject;

  aboutToAppear(): void {
    let paramResult: HMInterceptorInfo = HMRouterMgr.getCurrentParam() as HMInterceptorInfo;
    if (paramResult == undefined) {
      return;
    }
    this.TargetPath = paramResult.targetName;
    this.PathParam = paramResult.routerPathInfo.param;
  }

  build() {
    Column() {
      Row() {
        Text("账户:")
          .fontSize(16)
          .margin({ left: 10, right: 10 })
        TextInput({ text: this.UserName, placeholder: "请输入账户" })
          .layoutWeight(1)
          .margin({ right: 10 })
          .onChange((value) => {
            this.UserName = value
          })
      }
      .width("100%")

      Row() {
        Text("密码:")
          .fontSize(16)
          .margin({ left: 10, right: 10 })
        TextInput({ text: this.Password, placeholder: "请输入密码" })
          .layoutWeight(1)
          .margin({ right: 10 })
          .type(InputType.Password)
          .onChange((value) => {
            this.Password = value
          })
      }
      .width("100%")
      .margin({ top: 20 })

      Grid() {
        GridItem() {
          Button("注册")
            .width("100%")
            .backgroundColor("#f1f2f3")
            .fontColor("#007dfe")
            .onClick(() => {

            })

        }
        .width("50%")
        .padding({ right: 10, left: 10 })

        GridItem() {
          Button("登录")
            .width("100%")
            .onClick(() => {
              let loginResult: string = User.Login(this.UserName, this.Password);
              if (loginResult === "登录成功") {
                HMRouterMgr.replace({
                  pageUrl: this.TargetPath,
                  param: this.PathParam
                })
              }
              console.info("登录结果:" + loginResult);
            })
        }
        .width("50%")
        .padding({ right: 10, left: 10 })
      }
      .rowsTemplate("1tf 1tf")
      .margin({ top: 10 })
      .width("100%")
      .height(60)
    }
    .width("100%")
    .height("100%")
  }
}
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import { HMInterceptor, HMInterceptorAction, HMInterceptorInfo, HMRouterMgr, IHMInterceptor } from "@hadss/hmrouter";
import { User } from "../Common/User";

@HMInterceptor({
  priority: 9,
  interceptorName: "LoginInterceptor",
  global: true
})
export class LoginInterceptor implements IHMInterceptor {
  handle(info: HMInterceptorInfo): HMInterceptorAction {
    if (User.IsLogin()) {
      // 跳转下一个拦截器处理
      return HMInterceptorAction.DO_NEXT;
    } else {
      HMRouterMgr.push({
        pageUrl: 'LoginPage',
        skipAllInterceptor: true
      })
      // 拦截结束，不再执行下一个拦截器，不再执行相关转场和路由栈操作
      return HMInterceptorAction.DO_REJECT;
    }
  }
}
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