double为0或0.0时异常

 

版本:struts2.1.6

发生:页面传递double类型变量

解决方法:

添加转换器DoubleConvert

 

package com;

import java.util.Map;   

import org.apache.struts2.util.StrutsTypeConverter;   

public class DoubleConvert extends StrutsTypeConverter {   

    @SuppressWarnings("unchecked")

	@Override  

    public Object convertFromString(Map context, String[] values, Class toClass) {   

        if (Double.class == toClass) {   

             String doubleStr = values[0];   

             Double d = Double.parseDouble(doubleStr);   

            return d;   

         }   

        return 0;   

     }   

  

    @SuppressWarnings("unchecked")

	@Override  

    public String convertToString(Map context, Object o) {   

        return o.toString();   

     }   

} 
 

新建配置文件xwork-conversion.properties到src

添加内容:

java.lang.Double=com.DoubleConvert

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