从字符串中读取GPS $GPGGA数据，gpsgpgga,public stati

从字符串中读取GPS $GPGGA数据，gpsgpgga,public stati

public static void parserGPSList(String str) {    if (null == str || str.equals("")) {        System.out.println("GPS数据为空，请检查！");        return;    } else {        int beginPosition = str.indexOf('$');//第一个含有‘$’位置        if (-1 != beginPosition) {            while(-1 != beginPosition && '$' == str.charAt(beginPosition)) {                String temp = str.substring(beginPosition,                        beginPosition + 6);                if ("$GPGGA".equals(temp)) {                    int endPosition = str.indexOf('*', beginPosition);                    String gpsStr = str.substring(beginPosition,                            endPosition + 1);                    System.out.println(gpsStr);                    parserGPSItem(gpsStr);//具体解析gps item业务（代码未给出）                    beginPosition =str.indexOf('$', endPosition);                }else{                    beginPosition =str.indexOf('$', beginPosition+1);                }            }        }else{            System.out.println("数据中不包含$GPGGA数据！");        }    }}//该片段来自于http://byrx.net