代码：
	
	
	
	    
	    
	
	
	这是小滴课堂 freemaker整合index.html页面
	
	
	
payAppid  ${setting}
	
	
	
	
	
	
	
	
	package com.example.Maven.Project.config;
	
	import org.springframework.beans.factory.annotation.Value;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.context.annotation.PropertySource;
	
	import java.io.Serializable;
	
	@Configuration
	@PropertySource(value="classpath:pay.properties")
	public class WXConfig implements Serializable {
	
	    @Value("${wxpay.appid}")
	    private String payAppid;
	
	    @Value("${wxpay.secret}")
	    private String paySecret;
	
	    @Value("${wxpay.mechid}")
	    private String payMechId;
	
	    public String getPayAppid() {
	        return payAppid;
	    }
	
	    public void setPayAppid(String payAppid) {
	        this.payAppid = payAppid;
	    }
	
	    public String getPaySecret() {
	        return paySecret;
	    }
	
	    public void setPaySecret(String paySecret) {
	        this.paySecret = paySecret;
	    }
	
	    public String getPayMechId() {
	        return payMechId;
	    }
	
	    public void setPayMechId(String payMechId) {
	        this.payMechId = payMechId;
	    }
	}
	
	
	
	package com.example.Maven.Project.controller;
	
	import com.example.Maven.Project.config.WXConfig;
	import org.springframework.beans.factory.annotation.Autowired;
	import org.springframework.stereotype.Controller;
	import org.springframework.ui.ModelMap;
	import org.springframework.web.bind.annotation.GetMapping;
	import org.springframework.web.bind.annotation.RequestMapping;
	import org.springframework.web.bind.annotation.RestController;
	
	@Controller
	@RequestMapping("tpl")
	public class FreeMarkerController {
	
	    @Autowired
	    private WXConfig wxConfig;
	
	
	    @GetMapping("freemaker")
	    public String index1(ModelMap modelMap){
	
	        modelMap.addAttribute("setting",wxConfig);
	
	        //不用加后缀，因为配置文件里面已经指定了后缀
	        return "fm/index";
	
	    }
	
	
	}
		
		
	
	
	
	#微信支付的appid
	wxpay.appid=w23432432432
	
	#支付秘钥
	wxpay.secret=sfwerefwefqwed
	
	
	#微信支付商户号
	wxpay.mechid=324324