新建德森项目分支

skyouc

2024-12-21 c635d78b479510ebe2556a420948effcd30a0731

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package com.zy.asrs.wms.common.security; 
 
import com.alibaba.fastjson.JSON; 
import com.zy.asrs.wms.utils.EncryptUtils; 
import com.zy.asrs.wms.utils.WebkitParseUtils; 
import javax.servlet.ReadListener; 
import javax.servlet.ServletInputStream; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletRequestWrapper; 
import java.io.*; 
import java.util.HashMap; 
import java.util.Map; 
 
public class CachedBodyHttpServletRequest extends HttpServletRequestWrapper { 
    private final byte[] cachedBody; 
    private final Map<String, String[]> parameterMap; 
 
    public CachedBodyHttpServletRequest(HttpServletRequest request) throws IOException { 
        super(request); 
        String requestMethod = request.getMethod(); 
        if ("GET".equalsIgnoreCase(requestMethod)) { 
            Map<String, String[]> map = request.getParameterMap(); 
            String jsonString = JSON.toJSONString(map); 
            this.cachedBody = jsonString.getBytes(); 
            this.parameterMap = map; 
        }else { 
            // 读取请求体并缓存 
            InputStream inputStream = request.getInputStream(); 
            // 方法来读取所有字节 
            this.cachedBody = readBytesFromInputStream(inputStream); 
 
            this.parameterMap = new HashMap<>(); 
            // 读取并解析表单数据 
            parseRequestParameters(); 
        } 
    } 
 
    private byte[] readBytesFromInputStream(InputStream inputStream) throws IOException { 
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); 
        byte[] buffer = new byte[1024]; 
        int bytesRead; 
        while ((bytesRead = inputStream.read(buffer)) != -1) { 
            byteArrayOutputStream.write(buffer, 0, bytesRead); 
        } 
        return byteArrayOutputStream.toByteArray(); 
    } 
 
    @Override 
    public ServletInputStream getInputStream() { 
        return new CachedBodyServletInputStream(cachedBody); 
    } 
 
    @Override 
    public BufferedReader getReader() { 
        return new BufferedReader(new InputStreamReader(getInputStream())); 
    } 
 
    @Override 
    public String getParameter(String name) { 
        String[] values = parameterMap.get(name); 
        return (values != null && values.length > 0) ? values[0] : null; 
    } 
 
    @Override 
    public Map<String, String[]> getParameterMap() { 
        return parameterMap; 
    } 
 
    @Override 
    public String[] getParameterValues(String name) { 
        return parameterMap.get(name); 
    } 
 
    private static class CachedBodyServletInputStream extends ServletInputStream { 
        private final ByteArrayInputStream inputStream; 
 
        public CachedBodyServletInputStream(byte[] cachedBody) { 
            this.inputStream = new ByteArrayInputStream(cachedBody); 
        } 
 
        @Override 
        public boolean isFinished() { 
            return inputStream.available() == 0; 
        } 
 
        @Override 
        public boolean isReady() { 
            return true; 
        } 
 
        @Override 
        public void setReadListener(ReadListener listener) { 
            throw new UnsupportedOperationException(); 
        } 
 
        @Override 
        public int read() { 
            return inputStream.read(); 
        } 
    } 
 
    private void parseRequestParameters() { 
        String string = new String(cachedBody); 
        HashMap<String, Object> formData = WebkitParseUtils.getFormData(string); 
        for (Map.Entry<String, Object> entry : formData.entrySet()) { 
            parameterMap.put(entry.getKey(), new String[]{entry.getValue().toString()}); 
        } 
    } 
}