The request sent by the client was syntactically incorrect.
ajax发起请求时报400错误。请求代码如下：
var reportId=($(obj).parent().parent().parent().children(":first").attr("value"));var isChecked=$(obj).prop("checked")=="checked"?1:0;var reportSetting=$(obj).attr("value");var setting={reportId:reportId,isChecked:isChecked,reportSetting:reportSetting};console.log(JSON.stringify(setting));$.ajax({type: "POST",url: "/reportConfiguration",contentType:"application/json",data:JSON.stringify(setting),dataType: "json",success: function (msg) {if (msg.isSuccess){$("#msg").html("设置成功")}else{$("#msg").html(msg.result);}}});
服务端代码：
@RequestMapping("/reportConfiguration")@ResponseBodypublic String reportSet(@RequestBody ReportSettingEditBean reportSettingEditBean,HttpServletRequest request){return "";} bean定义：
public class ReportSettingEditBean {private long reportId;private boolean isChecked;private ReportSetting reportSetting;public long getReportId() {return reportId;}public void setReportId(long reportId) {this.reportId = reportId;}public boolean isChecked() {return isChecked;}public void setChecked(boolean isChecked) {this.isChecked = isChecked;}public ReportSetting getReportSetting() {return reportSetting;}public void setReportSetting(ReportSetting reportSetting) {this.reportSetting = reportSetting;} }public enum ReportSetting {Fixed(1),Scroll(2),First(4);private int value;public int getValue() {return value;}ReportSetting(int value){this.value=value;} }
解决：
在js中核对数据类型与接收数据类中属性的数据类型是否一致。
上例中：ReportSetting 是枚举对象， 而var reportSetting=$(obj).attr("value") 是字符串。修改成整数即可。正确请求如下：
var reportId=($(obj).parent().parent().parent().children(":first").attr("value"));var isChecked=$(obj).prop("checked")=="checked"?1:0;var reportSetting=parseInt($(obj).attr("value"));var setting={reportId:reportId,isChecked:isChecked,reportSetting:reportSetting};$.ajax({type: "POST",url: "/reportConfiguration",contentType:"application/json",data:JSON.stringify(setting),dataType: "json",success: function (msg) {if (msg.isSuccess){$("#msg").html("设置成功")}else{$("#msg").html(msg.result);}}});
和upper_bound())
)
