SpringBoot实现表单数据与文件同时上传

一、 前端表单文件

重点：设置enctype="multipart/form-data"

    <form   action="saveAgent" method="POST" enctype="multipart/form-data">
        代理人名称：<input type="text" name="agentName" />
        代理人手机号：<input type="text" name="agentPhone" />
        营业执照：<input type="file" name="blFile" />
        <input type="submit" value="提交" >
    </form>

二、后端接收实体类

package ;

import ;

import ;
import ;

public class AgentInfo implements Serializable {
    private Integer id;

    private String agentName;

    private String agentPhone;

    private MultipartFile blFile;

    private static final long serialVersionUID = 1L;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
         = id;
    }

    public String getAgentName() {
        return agentName;
    }

    public void setAgentName(String agentName) {
         = agentName == null ? null : ();
    }

    public String getAgentPhone() {
        return agentPhone;
    }

    public void setAgentPhone(String agentPhone) {
         = agentPhone == null ? null : ();
    }


    public MultipartFile getBlFile() {
        return blFile;
    }

    public void setBlFile(MultipartFile blFile) {
         = blFile;
    }

}

三、后端控制类

package ;

import ;
import ;
import ;
import ;
import ;
import ;
import .*;
import ;

@Api(value = "一级代理控制类")
@RestController
public class AgentInfoController {

    @Autowired
    private AgentService agentService;

    @ApiOperation(value = "添加一级代理接口",notes = "添加一级代理接口",response = )
    @PostMapping("saveAgent")
    public ResultBundle<Object> saveAgent(AgentInfo agentInfo){
        return (agentInfo);
    }
}

四、后端业务类

package ;

import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;

import ;
import ;
import ;

@Service
public class AgentServiceImpl implements AgentService {

    @Autowired
    private AgentInfoMapper agentInfoMapper;

    @Override
    @Transactional
    public ResultBundle<Object> saveAgent(AgentInfo agentInfo) throws Exception{
        if(agentInfo==null){
            return (ResCode.FALSE_DATA,"一级代理信息不能为空");
        }

        MultipartFile blFile = ();
        if(!()){
            String oldFileName = ();
            String path = ().getResource("").getPath()+"static/upload/bl";
            String randomStr = ().toString();
            String newFileName = randomStr + (("."));
            File file = new File(path,newFileName);
            if(!().exists()){
                ().mkdirs();
            }
            (file);
            (path+"/"+newFileName);
        }

        int rowNum  = (agentInfo);
        if(rowNum==0){
            return (,"添加一级代理信息失败");
        }
        return (null);
    }
}

五、配置类

spring:
  servlet:
    multipart:
      max-file-size: 2MB