JSP和Servlet传值中文乱码解决

缺乏、安全感 2022-06-06 02:48 226阅读 0赞

**1.JSP和Servlet传值通过客户端到服务器会出现乱码现象.**

**![Center][]**

![Center 1][]

**2.关于解决Servlet表单传值Get和Post乱码的解决.**

**         2.1  doget的解决,先建一个工具类,便于调用转码成utf-8,静态方法便于调用.**

**      **

public class MyUTF {
    
    	//封装成工具类
    	   public static String getNewString(String str) throws UnsupportedEncodingException
    	    {
    	       return new String(str.getBytes("ISO-8859-1"),"UTF-8");
    	    }
    }

2.1.2     Servle里的代码调用.

public void doGet(HttpServletRequest request, HttpServletResponse response)
    			throws ServletException, IOException {
    
    		//解决乱码
    		response.setContentType("text/html;charset=utf-8");
    		
    	
    		//获取界面的数据   使用封装的方法
    		String name=MyUTF.getNewString(request.getParameter("name"));
    		
    		
    		
    		//定义输出!
    		PrintWriter out = response.getWriter();
    		out.println(name);
    		out.println("你好,我是doGet!");
    		
    	}

**           结果:**

**![Center 2][]**

**           2.2   doPost的乱码解决.**

**                   2.2.1  客户端的post请求相对简单,直接在Servlet里添加转换的代码.**

public void doPost(HttpServletRequest request, HttpServletResponse response)
    			throws ServletException, IOException {
    
    		//解决中文乱码
    		response.setContentType("text/html;charset=utf-8");
    		//请求解决乱码
    		request.setCharacterEncoding("utf-8");
    		//响应解决乱码
    		response.setCharacterEncoding("utf-8");
    		//输出
    		PrintWriter out = response.getWriter();
    		String  name=request.getParameter("name");
    		
    		out.println(name);
    		out.println("你好!我是doPost!");
    	}

结果:

**  ![Center 3][]**

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[Center]: /images/20220606/584dab172dcd4a139ea26fdb9e3da512.png
[Center 1]: /images/20220606/73c81bf2bc5942bcb47e0f67f589b0e5.png
[Center 2]: /images/20220606/bc2d90ba797342bbb361bd3770932900.png
[Center 3]: /images/20220606/af56c74a06c04b1faa59e18a3f4c478c.png