flink电商实时分析系统 第1节 springboot 构建上报服务

上篇：导读认识Flink

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框架搭建，如图所示：


父工程构建出来了

接下来，在父工程中创建springboot项目，构建DSInfoservice子模块





并在DSInfoservice子模块，添加引用依赖：

pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.study</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>DSInfoservice</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR1</spring-cloud.version>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

    </dependencies>
    
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

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1、在DSInfoservice子模块代码编写

（1）编写DsInfoSJservice类

package com.youfan.test;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 */
@Controller
@RequestMapping("DsInfoSJservice")
public class DsInfoSJservice {

    @RequestMapping(value = "webInfoSJservice")
    public void webInfoSJservice( String jsonstr, HttpServletRequest request, HttpServletResponse response){
        System.out.println("hello Jin 来了！");
    }
}

（2）配置全局文件

application.properties

server.port=6097
spring.application.name=DSInfoservice

（3）启动启动类控制台打印与访问：


（4）对DsInfoSJservice类的代码进行完善，如下代码：

package com.youfan.test;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

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

/**
 *
 */
@Controller
@RequestMapping("DsInfoSJservice")
public class DsInfoSJservice {

    @RequestMapping(value = "webInfoSJservice", method = RequestMethod.POST)
    public void webInfoSJservice(@RequestBody String jsonstr, HttpServletRequest request, HttpServletResponse response) {
        System.out.println("hello Jin 来了！");

        //业务开始

        //业务结束
        PrintWriter printWriter = getWriter(response);
        printWriter.write("success");
        closeprintwriter(printWriter);

    }
    private PrintWriter getWriter(HttpServletResponse response) {
        response.setCharacterEncoding("utf-8");
        response.setContentType("application/json");
        OutputStream out = null;
        PrintWriter printWriter=null;
        try {
            out = response.getOutputStream();
            printWriter = new PrintWriter(out);
        } catch (IOException e) {
            e.printStackTrace();
        }

        return printWriter;
    }

    private void closeprintwriter(PrintWriter printWriter){
        printWriter.flush();
        printWriter.close();
    }
}