html字符串转义

1. 先定义数据类型

1. package com.whereta.common;
   
   /**
    * Created by vincent on 15-9-24.
    */
   public enum JavaBasicTypeEnum {
       STRING(String.class),
       INTEGER(Integer.class),
       BOOLEAN(Boolean.class),
       BYTE(Byte.class),
       LONG(Long.class),
       SHORT(Short.class),
       FLOAT(Float.class),
       DOUBLE(Double.class),
       CHAR(Character.class);
   
   
       private Class sClass;
   
       JavaBasicTypeEnum(Class sClass) {
           this.sClass = sClass;
       }
   
       protected static boolean isBasicType(Class sClass) {
           for (JavaBasicTypeEnum en : JavaBasicTypeEnum.values()) {
               Class aClass = en.getsClass();
               if (aClass.equals(sClass)) {
                   return true;
               }
           }
           return false;
       }
   
       public Class getsClass() {
           return sClass;
       }
   
       public void setsClass(Class sClass) {
           this.sClass = sClass;
       }
   }

2. 数据类型判断

1. package com.whereta.common;
   
   import java.util.*;
   
   /**
    * Created by vincent on 15-9-24.
    */
   public class JavaTypeUtils {
       /**
        * 判断是否是基本类型
        * @param obj  输入对象
        * @return
        */
       public static boolean isBasicType(Object obj){
           boolean isBasicType = JavaBasicTypeEnum.isBasicType(obj.getClass());
           return isBasicType;
       }
   
       /**
        * 判断是否是数组
        * @param obj
        * @return
        */
       public static boolean isArray(Object obj){
           return obj.getClass().isArray();
       }
   
       /**
        * 判断是否是集合
        * @param obj
        * @return
        */
       public static boolean isCollection(Object obj){
           Set<Class> classSet = getAllExtendAndImplementsClass(obj.getClass());
           for(Class c:classSet){
               if(c.equals(Collection.class)){
                   return true;
               }
           }
           return false;
       }
   
       private static Set<Class> getAllExtendAndImplementsClass(Class c){
           Set<Class> classSet=new HashSet<Class>();
           //获取接口
           Class[] interfaces = c.getInterfaces();
           if(interfaces!=null) {
               classSet.addAll(Arrays.asList(interfaces));
               for(Class in:interfaces){
                   classSet.addAll(getAllExtendAndImplementsClass(in));
               }
           }
           //获取父类
           Class superclass = c.getSuperclass();
           if(superclass!=null) {
               classSet.add(superclass);
               classSet.addAll(getAllExtendAndImplementsClass(superclass));
           }
           return classSet;
       }
   
       /**
        * 判断是否是list
        * @param obj
        * @return
        */
       public static boolean isList(Object obj){
           Set<Class> classSet = getAllExtendAndImplementsClass(obj.getClass());
           for(Class c:classSet){
               if(c.equals(List.class)){
                   return true;
               }
           }
           return false;
       }
       /**
        * 判断是否是map
        * @param obj
        * @return
        */
       public static boolean isMap(Object obj){
           Set<Class> classSet = getAllExtendAndImplementsClass(obj.getClass());
           for(Class c:classSet){
               if(c.equals(Map.class)){
                   return true;
               }
           }
           return false;
       }
   }

3. 数据处理

1. package com.whereta.common;
   
   import org.apache.commons.lang3.StringEscapeUtils;
   
   import java.lang.reflect.Field;
   import java.util.*;
   
   /**
    * Created by vincent on 15-9-24.
    */
   public class HtmlObjUtil {
   
       /**
        * 将页面提交的数据字符串进行替换,防止出现页面混乱
        * @param param
        * @return
        * @throws IllegalAccessException
        */
       public static Object replaceStringHtml(Object param) throws IllegalAccessException {
           if (param != null) {
   
               if (JavaTypeUtils.isBasicType(param)) {
   
                   if (param.getClass().equals(JavaBasicTypeEnum.STRING.getsClass())) {
                       return StringEscapeUtils.escapeHtml4(param.toString());
                   }
   
                   return param;
               }
   
               if (JavaTypeUtils.isArray(param)) {
                   Object[] objectArray = (Object[]) param;
                   for (int i = 0; i < objectArray.length; i++) {
                       Object object = objectArray[i];
                       if(object==null){
                           continue;
                       }
                       objectArray[i] = replaceStringHtml(object);
                   }
   
                   return objectArray;
               }
   
               if (JavaTypeUtils.isCollection(param)) {
                   Collection collection = (Collection) param;
   
                   Collection replaceCollection = new ArrayList();
   
                   Iterator iterator = collection.iterator();
                   while (iterator.hasNext()){
                       Object nextObj = iterator.next();
                       if(nextObj==null){
                           continue;
                       }
                       Object o = replaceStringHtml(nextObj);
                       iterator.remove();
                       replaceCollection.add(o);
                   }
   
                   collection.addAll(replaceCollection);
   
                   return collection;
               }
   
               if (JavaTypeUtils.isMap(param)) {
                   Map map = (Map) param;
                   Set set = map.keySet();
                   for (Object obj : set) {
                       Object mapValue = map.get(obj);
                       if(mapValue==null){
                           continue;
                       }
                       Object o = replaceStringHtml(mapValue);
                       map.put(obj, o);
                   }
   
                   return map;
               }
   
               Field[] declaredFields = param.getClass().getDeclaredFields();
               for (Field field : declaredFields) {
   
                   field.setAccessible(true);
                   int modifiers = field.getModifiers();
                   if(modifiers>=24){
                       continue;
                   }
   
                   Object o = field.get(param);
                   
                   if(o==null){
                       continue;
                   }
   
                   Object replaceObj = replaceStringHtml(o);
   
                   if (replaceObj.getClass().equals(JavaBasicTypeEnum.LONG.getsClass())) {
                       field.setLong(param, (Long) (replaceObj));
                   } else if (replaceObj.getClass().equals(JavaBasicTypeEnum.BOOLEAN.getsClass())) {
                       field.setBoolean(param, (Boolean) replaceObj);
                   } else if (replaceObj.getClass().equals(JavaBasicTypeEnum.BYTE.getsClass())) {
                       field.setByte(param, (Byte) replaceObj);
                   } else if (replaceObj.getClass().equals(JavaBasicTypeEnum.CHAR.getsClass())) {
                       field.setChar(param, (Character) replaceObj);
                   } else if (replaceObj.getClass().equals(JavaBasicTypeEnum.DOUBLE.getsClass())) {
                       field.setDouble(param, (Double) replaceObj);
                   } else if (replaceObj.getClass().equals(JavaBasicTypeEnum.FLOAT.getsClass())) {
                       field.setFloat(param, (Float) replaceObj);
                   } else if (replaceObj.getClass().equals(JavaBasicTypeEnum.INTEGER.getsClass())) {
                       field.setInt(param, (Integer) replaceObj);
                   } else if (replaceObj.getClass().equals(JavaBasicTypeEnum.SHORT.getsClass())) {
                       field.setShort(param, (Short) replaceObj);
                   } else {
                       field.set(param, replaceObj);
                   }
               }
   
               return param;
           }
   
           return param;
       }
   
   }

        通过递归，不断寻找字符串类型的数据转义

        git地址：https://git.oschina.net/junyue/JavaUtils

html字符串转义

原文：http://my.oschina.net/vincentzhao/blog/514576