spring boot文件上传、http数据服务API的DEMO

文件上传

import java.io.File;
import java.io.IOException;
import java.util.UUID;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

@Controller
@RequestMapping(value = "/file")
public class FileController {

    private static final Logger logger = LoggerFactory.getLogger(FileController.class);

    @RequestMapping(value = "upload")
    @ResponseBody
    public String upload(@RequestParam("roncooFile") MultipartFile file) {
        System.out.println("-------------------------");
        
        if (file.isEmpty()) {
            return "文件为空";
        }

        // 获取文件名
        String fileName = file.getOriginalFilename();
        logger.info("上传的文件名为：" + fileName);

        // 获取文件的后缀名
        String suffixName = fileName.substring(fileName.lastIndexOf("."));
        logger.info("上传的后缀名为：" + suffixName);

        // 文件上传路径
        String filePath = "d:/test/";

        // 解决中文问题，liunx下中文路径，图片显示问题
        //fileName = UUID.randomUUID() + suffixName;
        
        File dest = new File(filePath + fileName);

        // 检测是否存在目录
        if (!dest.getParentFile().exists()) {
            dest.getParentFile().mkdirs();
        }

        try {
            file.transferTo(dest);
            return "上传成功";
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "上传失败";
    }

}

http服务调用

import org.springframework.web.client.RestTemplate;

public class test {

    public static void main(String[] args) {
        String url = "http://www.baidu.com";
        RestTemplate template = new RestTemplate();
        String str = template.getForObject(url,String.class);
        System.out.println(str);
    }

}