java反射实现前端接收实体对象，去除“null”字符串

标签：学习工具总结

实体类
package com.tansun.ider.model.vo;

public class XXXXVO {
private String returnCode;
private String customerNo;
public String getReturnCode() {
return returnCode;
}
public void setReturnCode(String returnCode) {
this.returnCode = returnCode;
}
public String getCustomerNo() {
return customerNo;
}
public void setCustomerNo(String customerNo) {
this.customerNo = customerNo;
}

@Override
public String toString() {
    return "XXXXVO [returnCode=" + returnCode + ", customerNo=" + customerNo + "]";
}

}

数据转换类

/**
 * 把vo类中String类型的参数的null值或"NULL","null"转化成空字符串
 * @param obj
 * @return
 */
public static Object getReflectObjectTransString(Object obj) throws Exception{
    Class<? extends Object> classz = obj.getClass();
    Field[] fields=classz.getDeclaredFields();
    for(Field field:fields){
        if(String.class == field.getType()){
            // 属性参数值首字母转成大写
            char[] cs=(field.getName()).toCharArray();
            cs[0]-=32;
            String methodGetName = "get"+String.valueOf(cs);
            String methodSetName = "set"+String.valueOf(cs);
            Method getMethod = classz.getMethod(methodGetName, null);
            Method setMethod = classz.getMethod(methodSetName, String.class);
            Object value = getMethod.invoke(obj, null);
            if(null == value || "NULL".equals((String)value) || "null".equals((String)value))
            {
                setMethod.invoke(obj, "");
            }
        }
    }   
    return obj;
}

java反射实现前端接收实体对象，去除“null”字符串

标签：学习工具总结

原文地址：http://blog.51cto.com/11232071/2123225