子数组/ List在JQUERY 1.4.2 AJAX帖子中为空，使用Struts 2.3.34和struts json pluin 2.3.34

Question

我使用的是jQuery 1.4.2，Struts 2.3.34和Struts JSON插件2.3.34。

在将值从网页发布到Action时，一切都很好。但是如果我向bean添加了子数组/列表，则子数组/列表在发布后变为OPTIONS /oauth/token HTTP/1.1 Host: localhost:8080 Connection: keep-alive Pragma: no-cache Cache-Control: no-cache Access-Control-Request-Method: POST Origin: http://localhost:4200 User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.79 Safari/537.36 DNT: 1 Access-Control-Request-Headers: authorization Accept: */* Accept-Encoding: gzip, deflate, br Accept-Language: en-US,en;q=0.9 HTTP/1.1 401 Unauthorized Server: Apache-Coyote/1.1 X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block Cache-Control: no-cache, no-store, max-age=0, must-revalidate Pragma: no-cache Expires: 0 X-Frame-Options: DENY WWW-Authenticate: Basic realm="oauth2/client" Access-Control-Allow-Origin: http://localhost:4200 Vary: Origin Access-Control-Allow-Methods: POST Access-Control-Allow-Headers: authorization Access-Control-Allow-Credentials: true Allow: GET, HEAD, POST, PUT, DELETE, TRACE, OPTIONS, PATCH Content-Length: 0 Date: Sat, 09 Jun 2018 14:19:36 GMT 。

请参阅下面的null中的bean定义和操作映射。

BasicBean

struts.xml

SubBean.java

public class BasicBean implements Serializable {
  private String partNumber;
  private List<SubBean> subBeanList;

  public List<SubBean> getSubBeanList() {
    return subBeanList;
  }
  public void setSubBeanList(List<SubBean> subBeanList) {
    this.subBeanList = subBeanList;
  }
  public String getPartNumber() {
    return partNumber;
  }
  public void setPartNumber(String partNumber) {
    this.partNumber = partNumber;
  }
}

struts.xml中

public class SubBean implements Serializable {
  private String maxCritical;
  private String minCritical;

  public String getMaxCritical() {
    return maxCritical;
  }
  public void setMaxCritical(String maxCritical) {
    this.maxCritical = maxCritical;
  }
  public String getMinCritical() {
    return minCritical;
  }
  public void setMinCritical(String minCritical) {
    this.minCritical = minCritical;
  }
}

JQuery Ajax的JavaScript

<action name="jsTest" method="doJSon" class="com.jst.action.JSTest">   
  <result name="error"  type="json">
    <param name="includeProperties">errorResult.*</param>
  </result>
  <result name="success" type="json">
    <param name="root">result</param>
  </result>
</action> 

根据调试窗口，子bean值被POST到服务器：

但它在服务器端var sbList = []; localData = { '"maxCritical"' : '8', '"minCritical"' : '9' } sbList.push(localData); finalData = { 'bb.partNumber':'6', 'bb.subBeanList' : sbList } $.ajax({ type: "post", url: updateUrl, data: finalData, cache: false, dataType: 'json', success: function(msg){ if (msg.errorResult) { if(msg.errorResult["error_code"] == "session_expired"){ sessionExpired(); } return; } jAlert("OK"); } }); ，但其他元素Partnumber已成功发布：