正则获取一组数据

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.oro.text.regex.Perl5Compiler;
import org.apache.oro.text.regex.Perl5Matcher;
import org.apache.oro.text.regex.Perl5Substitution;
import org.apache.oro.text.regex.MalformedPatternException;
import org.apache.oro.text.regex.MatchResult;
import org.apache.oro.text.regex.Pattern;
import org.apache.oro.text.regex.PatternCompiler;
import org.apache.oro.text.regex.Util;

public class regexUtils {
private final static String regIp = "ip:([^,]+)";

    /**
     * @param str
     * @param reg
     * @return
     * @throws MalformedPatternException
     */
    public static DynamicArray<String> getHostData(String str, String reg)
            throws MalformedPatternException {
        DynamicArray<String> tempArray = new DynamicArray<String>();
        List<MatchResult> match = new ArrayList<MatchResult>();
        regexUtils.getMatchResults(match, str, reg);
        for (int i = 0; i < match.size(); i++) {
            String ip = match.get(i).group(1);
            tempArray.add(ip);
        }
        return tempArray;
    }

    /**
     * return match array
     * @param results
     * @param pageContent
     * @param regStr
     * @throws MalformedPatternException
     */
    public static void getMatchResults(List<MatchResult> results,
            String pageContent, String regStr) throws MalformedPatternException {
        PatternCompiler compiler = new Perl5Compiler();
        Pattern reg = compiler.compile(regStr,
                Perl5Compiler.CASE_INSENSITIVE_MASK);
        Perl5Matcher matcher = new Perl5Matcher();
        Perl5Substitution substitution = new Perl5Substitution();
        while (matcher.contains(pageContent, reg)) {
            substitution.setSubstitution("");
            results.add(matcher.getMatch());
            pageContent = Util.substitute(matcher, reg, substitution,
                    pageContent);
        }
    }

    public static vodi main(String[] args){
        String sourceData = "{172.16.134.134=SystemPerformanceEntity[ ip: 172.16.134.134, cpuUsage: 5.9%, memoryUsage: 28.555202535499337%, load: 0.99, diskUsage: {/sys/fs/cgroup=3%, /dev=4%, /run/shm=5%, /run=6%, /run/lock=7%}], 172.16.134.131=SystemPerformanceEntity[ ip: 172.16.134.131, cpuUsage: 5.0%, memoryUsage: 28.52202558918353%, load: 0.41, diskUsage: {/sys/fs/cgroup=0%, /dev=1%, /run/shm=1%, /run=1%, /run/lock=1%}]}";
  DynamicArray<String> ips = regexUtils.getHostData(sourceData , regIp);
System.out.println(ips);
    }  
}

 

动态数组类：

public class DynamicArray<AnyType> {
    private int size = 0;
    private AnyType theItem[] = null;

    public DynamicArray(AnyType a[]) {
        this.theItem = a;
        this.size = a.length;
    }

    public DynamicArray() {
    }

    public int getSize() {
        return this.size;
    }

    public AnyType get(int nIndex) {
        return this.theItem[nIndex];
    }

    public void Set(int nIndex, AnyType newElement) {
        this.theItem[nIndex] = newElement;
    }

    public void add(AnyType newVal) {
        AnyType old[] = this.theItem;

        this.theItem = (AnyType[]) new Object[size + 1];
        if (size != 0) {
            for (int i = 0; i < old.length; i++) {
                this.theItem[i] = old[i];
            }
        }
        this.theItem[this.size] = newVal;
        this.size++;
    }

    public static void main(String args[]) {
        DynamicArray<String> array = new DynamicArray<String>();
        array.add("1");
        array.add("2");
        array.add("3");
        array.add("a");
        array.add("b");
        array.add("c");
        for (int i = 0; i < array.size; i++) {
            System.out.println(array.get(i));
        }
    }
}