在 Spring Security 中，你可以通过实现特定的接口或扩展某些类来自定义各种处理器，例如登录成功处理器、登录失败处理器、无权限处理器和登出成功处理器。

以下是每种处理器的具体实现方法：

【示例】首先创建统一的响应结果类和响应结果编码枚举，方便后续示例中使用。

（1）创建 ApiResponseResult 响应结果类：

java">package com.pjb.ApiModel;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

/**
 * 响应结果类
 * @author pan_junbiao
 **/
@Data
@AllArgsConstructor
@NoArgsConstructor
public class ApiResponseResult<T>
{
    private int code;
    private String message;
    private T data;

    public ApiResponseResult(ApiResponseCode apiResponseCode)
    {
        this.code = apiResponseCode.getCode();
        this.message = apiResponseCode.getMessage();
    }

    public ApiResponseResult(ApiResponseCode apiResponseCode, T data)
    {
        this.code = apiResponseCode.getCode();
        this.message = apiResponseCode.getMessage();
        this.data = data;
    }
}

（2）创建 ApiResponseCode 响应结果编码枚举： 

java">package com.pjb.ApiModel;

/**
 * 响应结果编码枚举
 * @author pan_junbiao
 **/
public enum ApiResponseCode
{
    LOGIN_SUCCESS(20000, "登录成功"),
    LOGIN_FAILURE(30000, "登录失败"),
    AUTHORIZATION_FAILURE(40300, "403无权限"),
    LOGOUT_SUCCESS(50000, "注销成功");

    private final int code;
    private final String message;

    ApiResponseCode(int code, String message)
    {
        this.code = code;
        this.message = message;
    }

    public int getCode()
    {
        return code;
    }

    public String getMessage()
    {
        return message;
    }
}

1、登录成功处理器

登录成功处理器，需要实现 AuthenticationSuccessHandler 接口，当登录认证成功后会执行调用。

1.1 登录成功后重定向到首页

java">package com.pjb.handler;

import com.pjb.ApiModel.ApiResponseCode;
import com.pjb.ApiModel.ApiResponseResult;
import com.pjb.util.JacksonUtil;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * 登录成功处理类
 */
@Component
public class LoginSuccessHandler implements AuthenticationSuccessHandler
{
    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException
    {
        //登录成功，重定向到首页
        response.sendRedirect("/");
    }
}

1.2 登录成功后返回统一响应

java">package com.pjb.handler;

import com.pjb.ApiModel.ApiResponseCode;
import com.pjb.ApiModel.ApiResponseResult;
import com.pjb.util.JacksonUtil;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.ste