Java对象传值，数据类型的收不到值

Question

问题遇到的现象和发生背景

Java Controller 传递对象函数，其中包含一个数组，COLUMN没有获取到值，请问怎么才能获取到COLUMN的值？

传参如下：
{
"jobName":"Datax",
"jobDes":"Test",
"spliteRK":"datasource_id",
"tableName":"sys_datasource",
"COLUMN":[
"datasource_id","datasource_name"
]
}

Controller 代码如下：
public AjaxResult add(@RequestBody SysReader sysReader) {
System.out.println(sysReader);
}

输出如下：
SysReader{jobname='Datax', jobDes='Test', spliteRK='datasource_id', readerMode='null', tablename='sys_datasource', COLUMN=null, where='null'}

COLUMN 没有获取到值，请问怎么才能获取到COLUMN的值？

SysReader定义如下：

public class SysReader {

private static final long serialVersionUID = 1L;

/** 任务名称*/
private String jobName;

/** 任务描述 */
private String jobDes;

/** 切分键 */
private String spliteRK;

/** 任务模式 */
private String readerMode;

/** 表名 */
private String tableName;

/** 表字段名称 */
private ArrayList<String> COLUMN;

/** 表字段名称 */
private String where;

private String querySql;

public String getQuerySql() {
    return querySql;
}

public void setQuerySql(String querySql) {
    this.querySql = querySql;
}

public String getJobName() {
    return jobName;
}

public void setJobName(String jobName) {
    this.jobName = jobName;
}

public String getJobDes() {
    return jobDes;
}

public void setJobDes(String jobDes) {
    this.jobDes = jobDes;
}

public String getSpliteRK() {
    return spliteRK;
}

public void setSpliteRK(String spliteRK) {
    this.spliteRK = spliteRK;
}

public String getReaderMode() {
    return readerMode;
}

public void setReaderMode(String readerMode) {
    this.readerMode = readerMode;
}

public String getTableName() {
    return tableName;
}

public void setTableName(String tableName) {
    this.tableName = tableName;
}

public ArrayList<String> getCOLUMN() {
    return COLUMN;
}

public void setCOLUMN(ArrayList<String> COLUMN) {
    this.COLUMN = COLUMN;
}

public String getWhere() {
    return where;
}

public void setWhere(String where) {
    this.where = where;
}

@Override
public String toString() {
    return "SysReader{" +
            "jobname='" + jobName + '\'' +
            ", jobDes='" + jobDes + '\'' +
            ", spliteRK='" + spliteRK + '\'' +
            ", readerMode='" + readerMode + '\'' +
            ", tablename='" + tableName + '\'' +
            ", COLUMN=" + COLUMN +
            ", where='" + where + '\'' +
            '}';
}

}

Answer 1

该成小写private ArrayList column;即可