Question

我是初次尝试使用 spring 4.2.7 和 commons-io-1.3.2 ， commons-fileupload-1.3上传图片， jdk 1.8 。

但不幸的是我收到错误，即HTTP状态400 - 客户端发送的请求在语法上是不正确的。

请帮忙。

代码段是

formExamplePage.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>    
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Spring Form Example</title>
</head>
<body>
    <h2>Form Example</h2>
    <form:form commandName="formExample" action="formExampleDetails" method="post">
        <table>
            <tr>
                <td>
                    <label>User Name:</label>
                </td>
                <td>
                    <form:input path="userName" placeholder="User Name"></form:input>
                </td>
            </tr>
            <tr>
                <td>
                    <label>Salary:</label>
                </td>
                <td>
                    <form:input path="salary" placeholder="salary in decimal"/>
                </td>
            </tr>
            <tr>
                <td>
                    <label>Gender</label>
                </td>
                <td>
                    <form:radiobutton path="gender" value="M" label="Male"/>
                    <form:radiobutton path="gender" value="F" label="Female"/>
                </td>
            </tr>
            <tr>
                <td>
                    <label>Profile Photo:</label>
                </td>
                <td>
                    <input name="profilePhoto" type="file"/> 
                </td>
            </tr>
            <tr>
                <td>
                    <input type="submit" value="Submit"/>
                </td>
                <td>
                    <input type="reset" value="Reset">
                </td>
            </tr>
        </table>
    </form:form>
</body>
</html>

Controller类是ApplicationController.java

@Controller
public class ApplicationController {
@RequestMapping(value="/formExampleDetails",method=RequestMethod.POST)
    public String formExampleDetails(@ModelAttribute FormExample formExample,
            @RequestParam("profilePhoto") MultipartFile profilePhoto,ModelMap model){

        System.out.println("User Name====>"+formExample.getUserName());
        System.out.println("BirthDate====>"+formExample.getBirthDate());
        System.out.println("Gender=======>"+formExample.getGender());
        System.out.println("Salary=======>"+formExample.getSalary());
        System.out.println("ProfilePhoto=>"+profilePhoto.getOriginalFilename());

        return "index";
    }
}

Pojo类，即FormExample.java是

package com.spring.pojo;

import java.io.Serializable;
import java.math.BigDecimal;
import java.sql.Blob;
import java.sql.Date;

public class FormExample implements Serializable{
    private static final long serialVersionUID = 5527691555730303451L;

    private String userName;
    private Date birthDate;
    private BigDecimal salary;
    private Blob profilePhoto;
    private Character gender;

    public String getUserName() {
        return userName;
    }
    public void setUserName(String userName) {
        this.userName = userName;
    }
    public Date getBirthDate() {
        return birthDate;
    }
    public void setBirthDate(Date birthDate) {
        this.birthDate = birthDate;
    }
    public BigDecimal getSalary() {
        return salary;
    }
    public void setSalary(BigDecimal salary) {
        this.salary = salary;
    }
    public Blob getProfilePhoto() {
        return profilePhoto;
    }
    public void setProfilePhoto(Blob profilePhoto) {
        this.profilePhoto = profilePhoto;
    }
    public Character getGender() {
        return gender;
    }
    public void setGender(Character gender) {
        this.gender = gender;
    }
}

spring配置文件是

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.spring"></context:component-scan>  

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="./"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="100000000"></property>
    </bean>        
</beans>

Answer 1

你见过this question on multipartFiles and blobs吗？您的表单：表单可能需要enctype =＆＃34; multipart / form-data＆＃34;

我还没有尝试过运行您的代码，但是您是否尝试从FormExample中删除，重命名profilePhoto及其getter和setter，或者将其类型设置为MultipartFile？

我怀疑尽管你的控制器方法有一个具有相同名称的参数，但Spring可能会尝试将参数值分配给method参数和form属性，并且在分配时无法将MultipartFile转换为java.sql.Blob表单属性。

SpringMVC-FileUpload - HTTP状态400 - 客户端发送的请求在语法上是不正确的

1 个答案: