第一章使用REST方式处理文件服务

文件上传
文件下载

package com.seapp.web.controller;

import com.seapp.dto.FileInfo;
import com.sun.org.apache.xml.internal.serializer.OutputPropertiesFactory;
import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.Date;

/**文件上传与下载controller实现
 * @author seapp
 * @date 2020/8/5 22:41
 */
@RestController
@RequestMapping("/file")
public class FileController {

    private String folder = "D:\\javaEE\\security\\security-demo\\src\\main\\java\\com\\seapp\\web\\controller\\";

    @PostMapping
    public FileInfo upload(MultipartFile file) throws IOException {

        String name = file.getName();
        System.out.println("name = " + name);
        String originalFilename = file.getOriginalFilename();
        System.out.println("originalFilename = " + originalFilename);
        long size = file.getSize();
        System.out.println("size = " + size);


        File localFile = new File(folder, new Date().getTime() + ".txt");
        file.transferTo(localFile);

        return new FileInfo(localFile.getAbsolutePath());

    }

    @GetMapping("/{id}")
    public void download(@PathVariable("id") String id,
                         HttpServletRequest request, HttpServletResponse response) throws IOException {

        try (
                InputStream inputStream = new FileInputStream(folder + id + ".txt");
                OutputStream outputStream = response.getOutputStream();
        ) {
            response.setContentType("application/x-download");
            response.addHeader("Content-Disposition","attachment;filename=test.txt");
            IOUtils.copy(inputStream,outputStream);
            outputStream.flush();
        }
    }

}

package com.seapp.web;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

import java.io.UnsupportedEncodingException;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Date;

/**
 * 测试用例
 * @author seapp
 * @date 2020/8/4 17:33
 */
@RunWith(SpringRunner.class)
@SpringBootTest
public class UpdateFileControllerTest {

    @Autowired
    private WebApplicationContext wac;

    private MockMvc mockMvc;

    @Before
    public void before(){
        mockMvc = MockMvcBuilders.webAppContextSetup(wac).build();
    }
    
    @Test
    public void whenUploadSuccess() throws Exception {
        String result = mockMvc.perform(MockMvcRequestBuilders.fileUpload("/file")
                .file(new MockMultipartFile("file", "text.txt"
                        , "multipart/form-data"
                        , "hello upload".getBytes("UTF-8"))))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andReturn().getResponse().getContentAsString();
        System.out.println("result = " + result);
    }
    
}

第二章 Spring MVC 高级特性

1. 异步处理REST服务

异步处理提高服务性能

使用Runnable异步处理Rest服务
①代码实现

package com.seapp.async;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.Callable;

/**
 * 异步处理控制器
 * @author seapp
 * @date 2020/8/5 23:22
 */
@RestController
public class AsyncController {

    private Logger logger = LoggerFactory.getLogger(AsyncController.class);

    @RequestMapping("/order")
    public Callable order() throws InterruptedException {

        logger.info("主线程开始");

        Callable result = new Callable() {
            @Override
            public String call() throws Exception {
                logger.info("副线程开始");
                Thread.sleep(1000);
                logger.info("副线程返回");
                return "success";
            }
        };
        
        logger.info("主线程结束");
        return result;
    }

}

②实现结果：

主线程无需等待，提高了服务器的吞吐量

使用DeferredResult异步处理Rest服务

实例：
订单队列中定义两个变量：
placeOrder：有值时或对该属性赋值时，表示有新订单产生。
completeOrder：订单处理完成后，将订单id赋予该值。
图示中线程2实现对completeOrder属性监听，当该属性有值时，代表订单已处理完成，通过DeferredResult将处理结果返回。

①DeferredResult异步请求Controller层实现

package com.seapp.async;

import org.apache.commons.lang.RandomStringUtils;
import org.mockito.Mock;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.async.DeferredResult;

import java.util.concurrent.Callable;

/**
 * 异步处理控制器
 * @author seapp
 * @date 2020/8/5 23:22
 */
@RestController
public class AsyncController {

    @Autowired
    private MockQueue mockQueue;

    @Autowired
    private DeferredResultHolder deferredResultHolder;

    private Logger logger = LoggerFactory.getLogger(AsyncController.class);

    @RequestMapping("/order")
    public DeferredResult order() throws InterruptedException {

        logger.info("主线程开始");

        String orderNumber = RandomStringUtils.randomNumeric(8);
        mockQueue.setPlaceOrder(orderNumber);

        DeferredResult result = new DeferredResult<>();
        deferredResultHolder.getMap().put(orderNumber,result);

        logger.info("主线程结束");
        return result;
    }

}

② MockQueue 实现对消息队列以及应用2的模拟处理

package com.seapp.async;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

/**
 * 模拟队列
 *
 * @author seapp
 * @date 2020/8/5 23:47
 */
@Component
public class MockQueue {

    private Logger logger = LoggerFactory.getLogger(getClass());

    private String placeOrder;

    private String completeOrder;

    public String getPlaceOrder() {
        return placeOrder;
    }
    //当接收到订单时，对该订单进行处理。处理完成后将该值服务订单完成。
    public void setPlaceOrder(String placeOrder) throws InterruptedException {

        new Thread(() -> {
            logger.info("接到下单请求：" + placeOrder);
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            this.completeOrder = placeOrder;
            logger.info("下单请求处理完毕：" + placeOrder);
        }).start();
    }

    public String getCompleteOrder() {
        return completeOrder;
    }

    public void setCompleteOrder(String completeOrder) {
        this.completeOrder = completeOrder;
    }
}

③ DeferredResultHolder类的实现

package com.seapp.async;

import org.springframework.stereotype.Component;
import org.springframework.web.context.request.async.DeferredResult;

import java.util.HashMap;
import java.util.Map;

/**
 * @author seapp
 * @date 2020/8/5 23:55
 */
@Component
public class DeferredResultHolder {

    private Map> map = new HashMap<>();

    public Map> getMap() {
        return map;
    }

    public void setMap(Map> map) {
        this.map = map;
    }
}

④ 线程2的模拟，对响应结果的处理

package com.seapp.async;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;

/**
 * @author seapp
 * @date 2020/8/6 0:01
 */
@Component
public class QueueListener implements ApplicationListener {

    @Autowired
    private MockQueue mockQueue;

    @Autowired
    private DeferredResultHolder deferredResultHolder;

    private Logger logger = LoggerFactory.getLogger(getClass());

    /**
     * 系统启动初始化完成后，需要实现的功能
     *
     * @param contextRefreshedEvent
     */
    @Override
    public void onApplicationEvent(ContextRefreshedEvent contextRefreshedEvent) {

        //死循环处理逻辑，需在子线程中处理
        new Thread(() -> {
            while (true) {
                if (StringUtils.isNotBlank(mockQueue.getCompleteOrder())) {

                    String completeOrder = mockQueue.getCompleteOrder();
                    logger.info("返回订单处理结果：" + completeOrder);
                    deferredResultHolder.getMap().get(completeOrder).setResult("place order success");
                    mockQueue.setCompleteOrder(null);

                } else {
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }).start();


    }
}

⑥处理结果

异步处理配置

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {
 /**
     * 异步情况下，拦截器的配置
     * @param configurer
     */
    @Override
    public void configureAsyncSupport(AsyncSupportConfigurer configurer) {

        configurer.registerCallableInterceptors();
        configurer.registerDeferredResultInterceptors();
        configurer.setDefaultTimeout(1000*6);//设置超时时间
        configurer.setTaskExecutor()
    }
}

第三章、 REST服务开发常用工具

1.使用swagger自动生成html文档

maven依赖引入

  
            io.springfox
            springfox-boot-starter
            3.0.0

配置启动swagger

package com.seapp.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import springfox.documentation.oas.annotations.EnableOpenApi;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;

/**
 * @author seapp
 * @date 2020/8/6 10:38
 */
@Configuration
@EnableOpenApi
public class Swagger3Configuration implements WebMvcConfigurer {

    @Bean
    public Docket createRestApi(){
        return new Docket(DocumentationType.OAS_30).pathMapping("/")
                .enable(true);//定义是否开启swagger注解，true为开启，false为关闭。
    }

}

swagger访问地址：

http://localhost:8090/swagger-ui/index.html

swagger常用注解

@Api(tags = "用户的增删改查接口处理")//标明该Controller类
@ApiOperation(value = "用户查询服务")//标明该方法
@ApiParam("用户id") @PathVariable("id") String id //标明请求参数
//标明实体类中属性的定义    
@ApiModelProperty("用户密码")
private String password;

2.使用WireMock快速伪造RESTful服务

官网地址:
http://wiremock.org/

WireMock的安装与运行：独立安装，以jar包形式运行

指定端口为8062

pom文件中maven依赖的引入

 
        
            com.github.tomakehurst
            wiremock
            2.27.1

通过Java代码实现对本地WireMock服务中策略的配置

package com.seapp.wiremock;

import com.github.tomakehurst.wiremock.client.WireMock;
import nonapi.io.github.classgraph.utils.URLPathEncoder;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.http.impl.conn.Wire;
import org.springframework.core.io.ClassPathResource;

import java.io.IOException;

/**
 * @author seapp
 * @date 2020/8/6 12:45
 */
public class WireMockService {

    public static void main(String[] args) throws IOException {
        WireMock.configureFor(8062);
        WireMock.removeAllMappings();
        //可指定不同的接口访问，以及对应的json返回数据文件。
        mock("/order/1","01");


    }

    /**
     * 对wiremock数据的封装
     * @param url
     * @param fileName
     * @throws IOException
     */
    private static void mock(String url, String fileName) throws IOException {
        //获取本地资源，转换为字符串
        ClassPathResource classPathResource = new ClassPathResource("mock/response/"+fileName+".txt");
        String content = StringUtils
                .join(FileUtils.readLines(classPathResource.getFile(),"UTF-8")
                        .toArray(),"\n") ;
        WireMock.stubFor(WireMock.get(WireMock.urlPathEqualTo(url))
                .willReturn(WireMock.aResponse()
                        .withBody(content).withStatus(200)));
    }

}

Spring Security 安全之路进阶（二）

第一章使用REST方式处理文件服务

第二章 Spring MVC 高级特性

1. 异步处理REST服务

第三章、 REST服务开发常用工具

1.使用swagger自动生成html文档

2.使用WireMock快速伪造RESTful服务

你可能感兴趣的:(Spring Security 安全之路进阶（二）)

Spring Security 安全之路进阶（二）

第一章 使用REST方式处理文件服务

第二章 Spring MVC 高级特性

1. 异步处理REST服务

第三章、 REST服务开发常用工具

1.使用swagger自动生成html文档

2.使用WireMock快速伪造RESTful服务

你可能感兴趣的:(Spring Security 安全之路进阶（二）)

第一章使用REST方式处理文件服务