字符串转为Map类型：split()方法的应用

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import org.junit.Test;import java.util.HashMap;import java.util.Map;public class StringUtilsTest {     @Test    public void testDataToMap() {        String data = "certificatetype=0&certificateno=220182&depositacct=622848";        Map map = new HashMap();        if (null != data) {            String[] param = data.split("&");            for (int i = 0; i < param.length; i++) {                int index = param[i].indexOf('=');                map.put(param[i].substring(0,index), param[i].substring((index + 1)));            }        }        System.out.println(map);        System.out.println("----------------分割线---------------");        Map result = new HashMap();        String[] params = data.split("\\&");        for (String entry : params) {            if (entry.contains("=")) {                String[] sub = entry.split("\\=");                if (sub.length > 1) {                    result.put(sub[0], sub[1]);                } else {                    result.put(sub[0], "");                }            }        }        System.out.println(result);    }}

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