字符串“截断替换”工具类，截断工具类,package util

字符串“截断替换”工具类，截断工具类,package util

package utils;/** * 字符串截断工具类。  * <p>e.g 根据大写截断 1.把 " HelloWorld " 截断分成 " hello world "</p> *  * <pre> * Splitter.init("HelloWorld").byUpperCase().connect(" ").split().lowerFirst().toString() * </pre> *  * <p>2.把 " HelloWorld " 截断分成 " hello-world "</p> *  * <pre> * Splitter.init("HelloWorld").byUpperCase().connect("-").split().lowerFirst().toString() * </pre> *  * <p>e.g 根据给定特征点截断 1.把 " hello-world " 按照 '-' 截断分成 " Hello World "</p> *  * <pre> * Splitter.init("hello-world").by("-").connect(" ").split().upperFirst().toString() * </pre> *  * <p>2.把 " hello-world " 按照 '-' 截断分成 " Hello#World "</p> *  * <pre> * Splitter.init("hello-world").by("-").connect("#").split().toString() * </pre> *  * <p>e.g 综合 1.把 " demo.displayName " 按照 '.' 和 大写 截断分成 " Demo Display Name "</p> *  * <pre> * Splitter.init("demo.displayName").byUpperCase().by(".").connect(" ").split().upperFirst().toString() * </pre> *  * <p>2.把 " demo.displayName_test " 按照 '.'、大写、'_' 截断分成 " Demo Display Name Test "</p> *  * <pre> * Splitter.init("demo.displayName_test").byUpperCase().by(".", "_").connect(" ").split().upperFirst().toString() * </pre> *  * <p>3.把 " doHelloAtGetOrPost " 按照 'do'、'At'、'Or' 截断分成</p> * " /hello@get|post " *  * <pre> * Splitter.init("doHelloAtGetOrPost").by("do", "At", "Or").connect("/", "@", "|").split().lowerFirst().toString() * </pre> *  * @author weiwei *  */public class Splitter {    public static Splitter init(String source) {        return new Splitter(source);    }    public Splitter(String source) {        this.source = source;        result = new StringBuilder(this.source);    }    private StringBuilder result;    private String source;    private String[] cons;    private String[] bys;    private boolean byUpperCase = false;    private void splitByUpperCase() {        char[] chars = result.toString().toCharArray();        int inc = 0;        for (int i = 1; i < chars.length; i++) {            String s = String.valueOf(chars[i]);            if (this.byUpperCase && s.matches("[A-Z]")) {                int index = i + inc;                result.insert(index, cons[0]);                inc += inc + cons[0].length();                continue;            }        }    }    public Splitter connect(String... cons) {        this.cons = cons;        return this;    }    public Splitter by(String... bys) {        this.bys = bys;        return this;    }    public Splitter byUpperCase() {        this.byUpperCase = true;        return this;    }    public Splitter split() {        if (this.byUpperCase) {            this.splitByUpperCase();        }        if (bys == null)            return this;        for (int i = 0; i < bys.length; i++) {            String con = null;            if (bys.length > cons.length && cons.length == 1){                con = cons[0];            }else{                con = cons[i];            }            result = new StringBuilder(result.toString().replace(bys[i],con));        }        return this;    }    public Splitter upperFirst() {        if (bys == null)            bys = new String[1];        for (int i = 0; i < bys.length; i++) {            String con = null;            if (bys.length > cons.length && cons.length == 1){                con = cons[0];            }else{                con = cons[i];            }            String[] strs = result.toString().replace(con, "_##_").split("_##_");            StringBuilder sb = new StringBuilder();            for (String s : strs) {                if (sb.length() > 0)                    sb.append(con);                if (s.trim().length() == 0)                    continue;                if (s.length() <= 1)                    sb.append(s.toUpperCase());                else                    sb.append(s.replaceFirst(s.substring(0, 1),s.substring(0, 1).toUpperCase()));            }            result = new StringBuilder(sb.toString());        }        return this;    }    public Splitter lowerFirst() {        if (bys == null)            bys = new String[1];        for (int i = 0; i < bys.length; i++) {            String con = null;            if (bys.length > cons.length && cons.length == 1){                con = cons[0];            }else{                con = cons[i];            }            String start = null;            if (result.toString().startsWith(con)){                start = con;            }            String[] strs = result.toString().replace(con, "_##_").split("_##_");            StringBuilder sb = new StringBuilder();            for (String s : strs) {                if (sb.length() > 0)                    sb.append(con);                if (s.trim().length() == 0)                    continue;                if (s.length() <= 1)                    sb.append(s.toLowerCase());                else                    sb.append(s.replaceFirst(s.substring(0, 1),                            s.substring(0, 1).toLowerCase()));            }            if (start != null)                sb.insert(0, start);            result = new StringBuilder(sb.toString());        }        return this;    }    public String toString() {        return result.toString();    }    public static void main(String[] args) {        System.out.println(Splitter.init("HelloWorld").byUpperCase().connect(" ").split().lowerFirst().toString());        System.out.println(Splitter.init("HelloWorld").byUpperCase().connect("-").split().lowerFirst().toString());        System.out.println(Splitter.init("hello-world").by("-").connect(" ").split().upperFirst().toString());        System.out.println(Splitter.init("hello-world").by("-").connect("#").split().upperFirst().toString());        System.out.println(Splitter.init("demo.displayName").byUpperCase().by(".").connect(" ").split().upperFirst().toString());        System.out.println(Splitter.init("demo.displayName_test").byUpperCase().by(".", "_").connect(" ").split().upperFirst().toString());        System.out.println(Splitter.init("doHelloAtGetOrPost").by("do", "At", "Or").connect("/", "@", "|").split().lowerFirst().toString());    }}//该片段来自于http://byrx.net