springboot清除字符串前後空格與防xss攻擊方法

protected ConfigurableWebBindingInitializer getConfigurableWebBindingInitializer() {
    try {
        //從容器中獲取
        return (ConfigurableWebBindingInitializer)this.beanFactory.getBean(ConfigurableWebBindingInitializer.class);
    } catch (NoSuchBeanDefinitionException ex) {
      return super.getConfigurableWebBindingInitializer();
    }

/**
     *
     * @description 與spring mvc的@InitBinder結合 用於防止XSS攻擊
     */
     class StringEscapeEditor extends PropertyEditorSupport {
        /** 轉義HTML */
        private boolean escapeHTML;
        /** 轉義javascript */
        private boolean escapeJavaScript;
        /** 是否將空字符串轉換為null */
        private final boolean emptyAsNull;
        /** 是否去掉前後空格 */
        private final boolean trimmed;
        public StringEscapeEditor() {
            this(true,true,false,true);
        }
        public StringEscapeEditor(boolean escapeHTML, boolean escapeJavaScript) {
            this(true,true,escapeHTML,escapeJavaScript);
        }
        public StringEscapeEditor(boolean emptyAsNull,boolean trimmed, boolean escapeHTML, boolean escapeJavaScript) {
            super();
            this.emptyAsNull = emptyAsNull;
            this.trimmed = trimmed;
            this.escapeHTML = escapeHTML;
            this.escapeJavaScript = escapeJavaScript;
        }
        @Override
        public String getAsText() {
            Object value = getValue();
            if(Objects.nonNull(value))
            {
                return value.toString();
            }
            return value != null ? value.toString() : null;
        }
        @Override
        public void setAsText(String text) throws IllegalArgumentException {
            String value = text;
            if (value == null || emptyAsNull && text.isEmpty()) {
                //do nothing
            } else if (trimmed) {
                //去字符傳參數前後空格
                value = value.trim();
            }
            if (escapeHTML) {
                //HTML轉義（防止XSS攻擊）
                //HtmlUtils.htmlEscape 默認的是ISO-8859-1編碼格式，會將中文的某些符號進行轉義。
                //如果不想讓中文符號進行轉義請使用UTF-8的編碼格式。例如：HtmlUtils.htmlEscape(text, "UTF-8")
                value = HtmlUtils.htmlEscape(value, "UTF-8");
            }
            if (escapeJavaScript) {
                //javascript轉義（防止XSS攻擊）
                value = JavaScriptUtils.javaScriptEscape(value);
            }
            setValue(value);
        }
    }

@Configuration
public class WebBindingInitializerConfiguration {
    @Bean
    public ConfigurableWebBindingInitializer getConfigurableWebBindingInitializer() {
        ConfigurableWebBindingInitializer initializer = new ConfigurableWebBindingInitializer();
        FormattingConversionService conversionService = new DefaultFormattingConversionService();
        //we can add our custom converters and formatters
        //conversionService.addConverter(...);
        //conversionService.addFormatter(...);
        initializer.setConversionService(conversionService);
        //we can set our custom validator
        //initializer.setValidator(....);
        //here we are setting a custom PropertyEditor
        initializer.setPropertyEditorRegistrar(propertyEditorRegistry -> {
            propertyEditorRegistry.registerCustomEditor(String.class,
                    new StringEscapeEditor());
        });
        return initializer;
    }
}

@Component
@WebFilter(urlPatterns = "/**", filterName = "ParamsFilter", dispatcherTypes = DispatcherType.REQUEST)
public class ParamsFilter implements Filter {
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
        ParameterRequestWrapper parmsRequest = new ParameterRequestWrapper((HttpServletRequest) request);
        chain.doFilter(parmsRequest, response);
    }
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }
    @Override
    public void destroy() {
    }
}

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import com.alibaba.fastjson.JSON;
/**
 * @author : 
 * @description
 * @date : 2021/4/22
 */
public class ParameterRequestWrapper extends HttpServletRequestWrapper {
    private Map<String , String[]> params = new HashMap<>();
    public ParameterRequestWrapper(HttpServletRequest request) {
        super(request);
        Map<String, String[]> requestMap=request.getParameterMap();
        this.params.putAll(requestMap);
        this.modifyParameterValues();
    }
    @Override
    public ServletInputStream getInputStream() throws IOException {
        if(!super.getHeader(HttpHeaders.CONTENT_TYPE).equalsIgnoreCase(MediaType.APPLICATION_JSON_VALUE)){
            return super.getInputStream();
        }
        String json = IOUtils.toString(super.getInputStream(), "utf-8");
        if (StringUtils.isEmpty(json)) {
            return super.getInputStream();
        }
        Map<String,Object> map= jsonStringToMap(json);
        ByteArrayInputStream bis = new ByteArrayInputStream(JSON.toJSONString(map).getBytes("utf-8"));
        return new MyServletInputStream(bis);
    }
    public void modifyParameterValues(){
        Set<String> set = params.keySet();
        Iterator<String> it = set.iterator();
        while(it.hasNext()){
            String key= it.next();
            String[] values = params.get(key);
            values[0] = values[0].trim();
            params.put(key, values);
        }
    }
    @Override
    public String getParameter(String name) {
        String[]values = params.get(name);
        if(values == null || values.length == 0) {
            return null;
        }
        return values[0];
    }
    @Override
    public String[] getParameterValues(String name) {
        return params.get(name);
    }
    class MyServletInputStream extends ServletInputStream {
        private ByteArrayInputStream bis;
        public MyServletInputStream(ByteArrayInputStream bis){
            this.bis=bis;
        }
        @Override
        public boolean isFinished() {
            return true;
        }
        @Override
        public boolean isReady() {
            return true;
        }
        @Override
        public void setReadListener(ReadListener listener) {
        }
        @Override
        public int read(){
            return bis.read();
        }
    }
    public static Map<String, Object> jsonStringToMap(String jsonString) {
        Map<String, Object> map = new HashMap<>();
        JSONObject jsonObject = JSONObject.parseObject(jsonString);
        for (Object k : jsonObject.keySet()) {
            Object o = jsonObject.get(k);
            if (o instanceof JSONArray) {
                List<Map<String, Object>> list = new ArrayList<>();
                Iterator<Object> it = ((JSONArray) o).iterator();
                while (it.hasNext()) {
                    Object obj = it.next();
                    list.add(jsonStringToMap(obj.toString()));
                }
                map.put(k.toString(), list);
            } else if (o instanceof JSONObject) {
                map.put(k.toString(), jsonStringToMap(o.toString()));
            } else {
                if (o instanceof String) {
                    map.put(k.toString(), o.toString().trim());
                } else {
                    map.put(k.toString(), o);
                }
            }
        }
        return map;
    }
}