spring-boot出现"400错误请求"错误,详细信息如下

Question

春天靴子我很新.所以我问的问题可能是因为我错过了一些东西.我使用spring boot 1.3和freemarker来构建一个网站.当我提交表格(我没有填写的某些属性,这是我需要的情况)时,我收到"400错误请求".但是,当我填写表单的所有属性并提交时,它可以工作.那么,原因是什么？我该如何解决？

表单是以下代码.

    <label for="steelName" >??:</label>
    <input type="text" id="steelName" name="steelName" placeholder="??" value="${steelName!}" required><br/>

    <label for="steelCode" >??:</label>
    <input type="text" id="steelCode" name="steelCode" placeholder="??" value="${steelCode!}" required><br/>

    <label for="basic_price" >??:</label>
    <input type="text" id="basicPrice" name="basicPrice" placeholder="2000" value="${basicPrice!}" required>
    <label>?</label><br/>

    <label for="steel_factory" >??:</label>
    <input type="text" id="steelFactory" name="steelFactory" placeholder="????" value="${steelFactory!}" >

    <label for="city" >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;??:</label>
    <input type="text" id="city" name="city" placeholder="??" value="${city!}" >

    <br/>

    <label for="width" >????:</label>
    <input type="text" id="lowWidth" name="lowWidth" placeholder="1.0" value="${lowWidth!}" >
    <label for=""> - </label>
    <input type="text" id="highWidth" name="highWidth" placeholder="1.6" value="${highWidth!}" >
    <label for=""> m </label>

    <label for="width_step">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;?????</label>
    <input type="text" id="widthStep" name="widthStep" placeholder="1.0" value="${widthStep!}" >
    <label for=""> m </label>

    <label for="width_price">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;?????</label>
    <input type="text" id="widthPrice" name="widthPrice" placeholder="1.0" value="${widthPrice!}" >
    <label for=""> ? </label>

    </br>

    <label for="thickness" >????:</label>
    <input type="text" id="lowThickness" name="lowThickness" placeholder="1.0" value="${lowThickness!}" >
    <label for=""> - </label>
    <input type="text" id="highThickness" name="highThickness" placeholder="1.6" value="${highThickness!}" >
    <label for=""> cm </label>

    <label for="thickness_step">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;?????</label>
    <input type="text" id="thicknessStep" name="thicknessStep" placeholder="1.0" value="${thicknessStep!}" >
    <label for=""> cm </label>

    <label for="thickness_price">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;?????</label>
    <input type="text" id="thicknessPrice" name="thicknessPrice" placeholder="1.0" value="${thicknessPrice!}" >
    <label for=""> ? </label>

    </br>

    <button type="submit">??</button>

</form>

Controller.java

    @RequestMapping(value = "/admin/add/steel", method = RequestMethod.POST)
    public String addSteel(@ModelAttribute("steel")Steel steel, Model model) {

    log.info("add "+steel.getSteelName()+" info.");
    //model.addAttribute(FormAuthenticationFilter.DEFAULT_USERNAME_PARAM, userName);
    steel = steelService.save(steel);
    model.addAttribute("steel", steel);
    return "steel/detail";
}

钢铁实体

 @Entity
        @Table(name = "t_steel")
        public class Steel extends IdEntity {    
        @Column(name = "steel_name", unique = true)
        private String steelName;
        @Column(name = "steel_code", unique = true)
        private String steelCode;
        @Column(name = "basic_price", unique = true)
        private int basicPrice;

    @Column(name = "steel_factory", nullable = true)
    private String steelFactory = null;

    @Column(name = "city", nullable = true)
    private String city = null;

    @Column(name = "low_width", nullable = true)
    private Double lowWidth = null;

    @Column(name = "high_width", nullable = true)
    private Double highWidth  = null;

    @Column(name = "width_step", nullable = true)
    private Double widthStep  = null;

    @Column(name = "width_price", nullable = true)
    private Integer widthPrice  = null;

问题:

这是表单 的链接这是错误的链接

Answer 1

将以下属性添加到Spring启动配置中logging.level.org.springframework.web=DEBUG.使用这样的日志级别,您将有详细说明错误,解释400的原因.

您也可以在类路径中删除logback.xml(例如src/main/resources)并添加此appender:

<configuration>
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <logger name="org.springframework.web" level="DEBUG" />

    <root level="info">
        <appender-ref ref="STDOUT" />
    </root>
</configuration>

祝好运.